The final action buttons PR (#16514)

* Make action button target datum

* Initial working action palette

* Action related refactors

* tgstation/tgstation/pull/71339

code/game/objects/items/devices/flashlight.dm

@@ -102,7 +102,7 @@
 		STOP_PROCESSING(SSobj, src)
 	playsound(src, 'sound/weapons/empty.ogg', 15, 1, -3) // VOREStation Edit
 	update_brightness()
-	user.update_action_buttons_icon()
+	user.update_mob_action_buttons()
 	return 1
 
 /obj/item/flashlight/emp_act(severity)

code/game/objects/items/weapons/shields_vr.dm

@@ -64,7 +64,7 @@
 		set_light(0)
 		light_applied = 0
 	update_icon(user)
-	user.update_action_buttons_icon()
+	user.update_mob_action_buttons()
 	playsound(src, 'sound/weapons/empty.ogg', 15, 1, -3)
 
 /obj/item/shield/riot/explorer/update_icon()

code/game/objects/items/weapons/tanks/jetpack.dm

@@ -55,7 +55,7 @@
 	if (ismob(usr))
 		var/mob/M = usr
 		M.update_inv_back()
-		M.update_action_buttons_icon()
+		M.update_mob_action_buttons()
 
 	to_chat(usr, "You toggle the thrusters [on? "on":"off"].")