Fixes the subtler hotkey opening up the subtle textbox (#6390)

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## About The Pull Request

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## Why It's Good For The Game

fixes #6296 

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🆑 Chelxox
fix: The subtler (anti-ghost) hotkey will now actually open the subtler
textbox instead of the subtle one
/🆑

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code/modules/keybindings/keybind/mob.dm

@@ -195,7 +195,7 @@
 	description = "Does a subtle emote that's invisible to ghosts."
 
 /datum/keybinding/mob/subtler/down(client/user)
-	user.mob.subtle_wrapper()
+	user.mob.subtler_wrapper()
 	return TRUE
 
 /datum/keybinding/mob/drop_item