literally just hook asay into tgui say (#73212)

## About The Pull Request

pressing f3 now opens asay in tgui say
## Why It's Good For The Game

![john willard gets
banned](https://user-images.githubusercontent.com/12202230/216750445-addb4f3f-0df4-47da-891d-4ef4820a10ab.png)

also fixes double-escaped special characters caused by #72407 and
finally gets rid of the gross regular tgui input popup
## Changelog
🆑
fix: asays are no longer double-escaped
admin: asay now uses tgui say
/🆑

---------

Co-authored-by: Scriptis <scriptis@duck.com>

code/modules/admin/holder2.dm

@@ -114,6 +114,7 @@ GLOBAL_PROTECT(href_token)
 		disassociate()
 		add_verb(client, /client/proc/readmin)
 		client.disable_combo_hud()
+		client.update_special_keybinds()
 
 /datum/admins/proc/associate(client/client)
 	if(IsAdminAdvancedProcCall())
@@ -154,6 +155,7 @@ GLOBAL_PROTECT(href_token)
 	owner.add_admin_verbs()
 	remove_verb(owner, /client/proc/readmin)
 	owner.init_verbs() //re-initialize the verb list
+	owner.update_special_keybinds()
 	GLOB.admins |= client
 
 	try_give_profiling()