/Icon/ Folder cleansing crusade part, I think 4; post-wallening clean-up. (#85823)

Hello everybuddy, your number three rated coder-failure here to clean up
some mess. This PR accomplishes some of the more major structural clean
up changes I wanted to do with /obj/ folder, but decided to wait on
until wallening gets merged, and so, time has come. Several things to
still be done, although I know these cleaning PR's are quite a load, so
will wait for this one to get done with first.

## Why It's Good For The Game
Saner spriters, better sprites, less annoyance. Also deleted a whole
load of redundancy this time around, a lot of sprites which existed
simultaniously in two places now got exit their quantum superposition.

code/datums/components/pet_commands/pet_commands_basic.dm

@@ -7,7 +7,7 @@
 /datum/pet_command/idle
 	command_name = "Stay"
 	command_desc = "Command your pet to stay idle in this location."
-	radial_icon = 'icons/obj/bed.dmi'
+	radial_icon = 'icons/obj/structures/bed.dmi'
 	radial_icon_state = "dogbed"
 	speech_commands = list("sit", "stay", "stop")
 	command_feedback = "sits"
@@ -281,7 +281,7 @@
 /datum/pet_command/point_targeting/fish
 	command_name = "Fish"
 	command_desc = "Command your pet to try fishing at a nearby fishing spot."
-	radial_icon = 'icons/obj/aquarium/fish.dmi'
+	radial_icon = 'icons/obj/structures/aquarium/fish.dmi'
 	radial_icon_state = "goldfish"
 	speech_commands = list("fish")