Reorganizes the sound folder (#86726)

## About The Pull Request

<details>

- renamed ai folder to announcer

-- announcer --
- moved vox_fem to announcer
- moved approachingTG to announcer

- separated the ambience folder into ambience and instrumental
-- ambience --

- created holy folder moved all related sounds there
- created engineering folder and moved all related sounds there
- created security folder and moved ambidet there
- created general folder and moved ambigen there
- created icemoon folder and moved all icebox-related ambience there
- created medical folder and moved all medbay-related ambi there
- created ruin folder and moves all ruins ambi there
- created beach folder and moved seag and shore there
- created lavaland folder and moved related ambi there
- created aurora_caelus folder and placed its ambi there
- created misc folder and moved the rest of the files that don't have a
specific category into it

-- instrumental --

- moved traitor folder here
- created lobby_music folder and placed our songs there (title0 not used
anywhere? - server-side modification?)

-- items --

- moved secdeath to hailer
- moved surgery to handling

-- effects --

- moved chemistry into effects
- moved hallucinations into effects
- moved health into effects
- moved magic into effects

-- vehicles --

- moved mecha into vehicles


created mobs folder

-- mobs --

- moved creatures folder into mobs
- moved voice into mobs

renamed creatures to non-humanoids
renamed voice to humanoids

-- non-humanoids--

created cyborg folder
created hiss folder
moved harmalarm.ogg to cyborg

-- humanoids --




-- misc --

moved ghostwhisper to misc
moved insane_low_laugh to misc

I give up trying to document this.

</details>

- [X] ambience
- [x] announcer
- [x] effects
- [X] instrumental
- [x] items
- [x] machines
- [x] misc 
- [X] mobs
- [X] runtime
- [X] vehicles

- [ ] attributions

## Why It's Good For The Game

This folder is so disorganized that it's vomit inducing, will make it
easier to find and add new sounds, providng a minor structure to the
sound folder.

## Changelog
🆑 grungussuss
refactor: the sound folder in the source code has been reorganized,
please report any oddities with sounds playing or not playing
server: lobby music has been repathed to sound/music/lobby_music
/🆑

code/game/objects/structures/cannons/cannon.dm

@@ -17,7 +17,7 @@
 	var/charge_ignited = FALSE
 	var/fire_delay = 15
 	var/charge_size = 15
-	var/fire_sound = 'sound/weapons/gun/general/cannon.ogg'
+	var/fire_sound = 'sound/items/weapons/gun/general/cannon.ogg'
 
 /obj/structure/cannon/Initialize(mapload)
 	. = ..()

code/game/objects/structures/cannons/mounted_guns/mounted_gun.dm

@@ -34,9 +34,9 @@
 	///If the gun shakes the camera when firing
 	var/firing_shakes_camera = TRUE
 	///sound of firing for all but last shot
-	var/fire_sound = 'sound/weapons/gun/general/mountedgun.ogg'
+	var/fire_sound = 'sound/items/weapons/gun/general/mountedgun.ogg'
 	///sound of firing for last shot
-	var/last_fire_sound = 'sound/weapons/gun/general/mountedgunend.ogg'
+	var/last_fire_sound = 'sound/items/weapons/gun/general/mountedgunend.ogg'
 
 /obj/structure/mounted_gun/wrench_act(mob/living/user, obj/item/tool)
 	. = ..()