xeno rest button (#77551)

## About The Pull Request
xenos now have a rest button above their combat mode toggle 

## Why It's Good For The Game
xenos can rest, but for some reason it was only a verb and wasn't a hud
button like with humans

## Changelog

🆑
qol: xenos rest verb now is a hud button instead
/🆑

code/_onclick/hud/alien.dm

@@ -87,6 +87,12 @@
 	pull_icon.update_appearance()
 	pull_icon.screen_loc = ui_above_movement
 	static_inventory += pull_icon
+		
+	rest_icon = new /atom/movable/screen/rest(null, src)
+	rest_icon.icon = ui_style
+	rest_icon.screen_loc = ui_above_intent
+	rest_icon.update_appearance()
+	static_inventory += rest_icon
 
 //begin indicators
 

code/_onclick/hud/alien_larva.dm

@@ -22,6 +22,12 @@
 	pull_icon.screen_loc = ui_above_movement
 	hotkeybuttons += pull_icon
 
+	rest_icon = new /atom/movable/screen/rest(null, src)
+	rest_icon.icon = ui_style
+	rest_icon.screen_loc = ui_above_intent
+	rest_icon.update_appearance()
+	static_inventory += rest_icon
+
 	using = new/atom/movable/screen/language_menu(null, src)
 	using.screen_loc = ui_alien_language_menu
 	static_inventory += using