Material container & related stuff ui refactors & clean-up (#76220)

## About The Pull Request

**1. Material container clean-up & refactor**
- Replaced `total_amount` var with `total_amount()` proc, this var can
be easily computed by summing up all material amounts rather than
storing it as a var which is tedious to update & keep track of when
materials are added/removed
- Removed unused procs `transer_amt_to()`, `can_insert_amount_mat()`,
and `get_categories()`. These procs are not used anywhere in the
codebase so let's remove them & make some space.
- Callbacks are replaced with signals, the callbacks don't need to be
explicitly garbage collected & having macros & procs marked with
`SIGNAL_HANDLER` makes your intentions more readable & explicit.
- Fixes #76151 
All material adding, removal, checking operations are "Integer"
operations, i.e. the final value is rounded & them made 1 if the final
value is 0 using the macro `OPTIMIZE_COST`[coudn't come up with a better
name]. No more dealing with decimal value materials
The problem was after the protolathe was upgraded with better parts all
the design costs were multiplied with a decimal `efficiency_coeff`
value, this means even though in the UI the cost was displayed as 60
bluespace crystals its actual cost was `60.0001` something in the
backend causing this check for materials to fail & print the error
message.
- Replaced `GetComponent(/datum/component_material_container)` with just
a simple ref to the material container when adding the component, so we
can save some overhead from calling this proc
- Gave all procs a ton of documentation with documentation having
documentation
- Fixes #76506 RCD and other devices that uses the silo link upgrade now
have the correct material usages
- Fixes #72096. It wasn't just a problem with ancient protolathe but
with all machines that used `datum/component/remote_materials` the
problem was remote materials would add an instance of
`datum/remote/material_container` if it wanted to use local storage but
this component would get added before `datum/component/remote_materials`
could be registered i.e. it comes before remote_materials in the
component list. So when the machine is destroyed it will first destroy
`material_container` & then `remote_materials` therefore destroying the
materials before they could get ejected
- Silo link is established when parent is registered with remote
materials raher than adding an external timer which is faster
- Everything that uses a material container will auto eject their sheets
when destroyed
- Moved this & remote materials into its own folder for better
organization


**2. Material UI Changes**
- Removed the x25 & x50 print buttons from the autolathe, now they just
have x5 & x10 buttons like the protolathe, These buttons were of no use
since you could just type the exact amount you want to print in the
`[Max: <some amount>]` side bar. The code to compute these buttons was
just plain right nasty & some of it unused in the UI.
- The material eject button in the material bar does not gray out when
you can eject exactly one sheet
- All material cost are integer values rounded
- Fixes #76253 Exosuit Fabricator sends the material container static
data to the UI so its material bar is not greyed out when there are
sufficient materials to eject
- Component printer material bar sends the material container static
data to the UI so its material bar is not greyed out when there are
sufficient materials to eject
- Autolathe Material bars now display number of sheets available
- Max printable amount of items are now computed & updated correctly in
the UI. They were displaying wrong values & now get updated when items
are printed, materials are removed
- Silo hold actually works now. When a machine is put on hold it calls
this proc

https://github.com/tgstation/tgstation/blob/e929cf39cded5207d63df1fa8521f41f2816b383/code/datums/components/remote_materials.dm#L78-L87
Notice how the key is `src` so we should be consistent during checking
if a machine is on hold using the same `src` var. But for some reason we
did dumb shit like this

https://github.com/tgstation/tgstation/blob/e929cf39cded5207d63df1fa8521f41f2816b383/code/datums/components/remote_materials.dm#L150-L153
What is category? Why do we care for the area the machine is in? None of
it made sense so i removed all that junk and just made it check for
`src` like it should
- Removed redundant `removable` & `sheets` var from the material
container ui_data. These vars are unused in the UI
- If an item does not have the required materials then upon clicking
that item you will not get any error message but instead nothing happens

## Changelog
🆑
fix: items can be printed from autolathe & protolathe when the exact
material amounts are present in them after upgrading
fix: max printable amount now shows the correct value & updates when
items are printed, materials are removed in the autolathe & protolathe
fix: component printer material bar is not greyed out when there are
sufficient materials to eject
fix: rcd and other devices that uses the silo link upgrade now have the
correct material usages
fix: silo hold actually works
fix: machines using local storage to hold materials will eject it's
materials as sheets when deconstructed/destroyed
refactor: Autolathe Material bars now display number of sheets available
refactor: printing an item that does not have enough materials will fail
silently with no error messages
refactor: Drone dispenser will eject sheets upon deconstruction
refactor: all things that store materials will auto ejects its sheets(if
there is sufficient material) when destroyed
refactor: inserting an item into the material container will display the
units consumed as sheets not absolute units
refactor: removed x25 & x50 print buttons from the autolathe

code/modules/mod/modules/modules_general.dm

@@ -726,10 +726,22 @@
 		COMSIG_ATOM_AFTER_SUCCESSFUL_INITIALIZED_ON = PROC_REF(on_atom_initialized_on),
 	)
 	var/datum/component/connect_loc_behalf/connector
+	var/datum/component/material_container/container
 
 /obj/item/mod/module/recycler/Initialize(mapload)
 	. = ..()
-	AddComponent(/datum/component/material_container, accepted_mats, 50 * SHEET_MATERIAL_AMOUNT, MATCONTAINER_EXAMINE|MATCONTAINER_NO_INSERT, _after_retrieve=CALLBACK(src, PROC_REF(attempt_insert_storage)))
+	container = AddComponent( \
+		/datum/component/material_container, \
+		accepted_mats, 50 * SHEET_MATERIAL_AMOUNT, \
+		MATCONTAINER_EXAMINE|MATCONTAINER_NO_INSERT, \
+		container_signals = list( \
+			COMSIG_MATCONTAINER_SHEETS_RETRIVED = TYPE_PROC_REF(/obj/item/mod/module/recycler, InsertSheets) \
+		) \
+	)
+
+/obj/item/mod/module/recycler/Destroy()
+	container = null
+	return ..()
 
 /obj/item/mod/module/recycler/on_activation()
 	. = ..()
@@ -747,6 +759,7 @@
 
 /obj/item/mod/module/recycler/proc/on_wearer_moved(datum/source, atom/old_loc, dir, forced)
 	SIGNAL_HANDLER
+
 	for(var/obj/item/item in mod.wearer.loc)
 		if(!is_type_in_list(item, allowed_item_types))
 			return
@@ -754,12 +767,14 @@
 
 /obj/item/mod/module/recycler/proc/on_obj_entered(atom/new_loc, atom/movable/arrived, atom/old_loc)
 	SIGNAL_HANDLER
+
 	if(!is_type_in_list(arrived, allowed_item_types))
 		return
 	insert_trash(arrived)
 
 /obj/item/mod/module/recycler/proc/on_atom_initialized_on(atom/loc, atom/new_atom)
 	SIGNAL_HANDLER
+
 	if(!is_type_in_list(new_atom, allowed_item_types))
 		return
 	//Give the new atom the time to fully initialize and maybe live if the wearer moves away.
@@ -770,7 +785,6 @@
 		insert_trash(new_atom)
 
 /obj/item/mod/module/recycler/proc/insert_trash(obj/item/item)
-	var/datum/component/material_container/container = GetComponent(/datum/component/material_container)
 	var/retrieved = container.insert_item(item, multiplier = efficiency, breakdown_flags = BREAKDOWN_FLAGS_RECYCLER)
 	if(retrieved == MATERIAL_INSERT_ITEM_NO_MATS) //even if it doesn't have any material to give, trash is trash.
 		qdel(item)
@@ -787,7 +801,6 @@
 	dispense(target)
 
 /obj/item/mod/module/recycler/proc/dispense(atom/target)
-	var/datum/component/material_container/container = GetComponent(/datum/component/material_container)
 	if(container.retrieve_all(target))
 		balloon_alert(mod.wearer, "material dispensed")
 		playsound(src, 'sound/machines/microwave/microwave-end.ogg', 50, TRUE)
@@ -795,6 +808,11 @@
 	balloon_alert(mod.wearer, "not enough material")
 	playsound(src, 'sound/machines/buzz-sigh.ogg', 50, TRUE)
 
+/obj/item/mod/module/recycler/proc/InsertSheets(obj/item/recycler, obj/item/stack/sheets)
+	SIGNAL_HANDLER
+
+	attempt_insert_storage(sheets)
+
 /obj/item/mod/module/recycler/proc/attempt_insert_storage(obj/item/to_drop)
 	if(!isturf(to_drop.loc) && !to_drop.loc.atom_storage?.attempt_insert(to_drop, mod.wearer, override = TRUE))
 		to_drop.forceMove(to_drop.loc.drop_location())
@@ -815,7 +833,6 @@
 	var/required_amount = SHEET_MATERIAL_AMOUNT*12.5
 
 /obj/item/mod/module/recycler/donk/dispense(atom/target)
-	var/datum/component/material_container/container = GetComponent(/datum/component/material_container)
 	if(!container.use_amount_mat(required_amount, /datum/material/iron))
 		balloon_alert(mod.wearer, "not enough material")
 		playsound(src, 'sound/machines/buzz-sigh.ogg', 50, TRUE)