Rebindable Hotkeys (#12138)

* demodularize interface

* keybindings

* binds

* prefs

* loose ends

* globals

* changes

* s

* datum ref lists

* ok

* fixes

* fixes

* fix

* ok

* sigh

* sigh

* indicators

* let's play the move code around game

* let's play the i didn't comma my lists game

* let's play the indent game

* let's play hte spelling bee

* let's fail the spelling bee

* LET'S PLAY THe HOW HARd  IS  IT TO SPELL A PROC GAME

* let's play the bugfix game

* bugfixes

* improvements

* Update bindings_client.dm

* pixel shift

* A

* wups

code/__HELPERS/global_lists.dm

@@ -75,6 +75,8 @@
 		var/datum/emote/E = new path()
 		E.emote_list[E.key] = E
 
+	init_keybindings()
+
 	//Uplink Items
 	for(var/path in subtypesof(/datum/uplink_item))
 		var/datum/uplink_item/I = path

code/__HELPERS/sanitize_values.dm

@@ -18,6 +18,12 @@
 		return text
 	return default
 
+/proc/sanitize_islist(value, default)
+	if(islist(value) && length(value))
+		return value
+	if(default)
+		return default
+
 /proc/sanitize_inlist(value, list/List, default)
 	if(value in List)
 		return value