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/client/client_procs.dm

@@ -1046,7 +1046,7 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
  *
  * Handles adding macros for the keys that need it
  * And adding movement keys to the clients movement_keys list
- * At the time of writing this, communication(OOC, Say, IC) require macros
+ * At the time of writing this, communication(OOC, Say, IC, ASAY) require macros
  * Arguments:
  * * direct_prefs - the preference we're going to get keybinds from
  */
@@ -1078,6 +1078,12 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 				if(OOC_CHANNEL)
 					var/ooc = tgui_say_create_open_command(OOC_CHANNEL)
 					winset(src, "default-[REF(key)]", "parent=default;name=[key];command=[ooc]")
+				if(ADMIN_CHANNEL)
+					if(holder)
+						var/asay = tgui_say_create_open_command(ADMIN_CHANNEL)
+						winset(src, "default-[REF(key)]", "parent=default;name=[key];command=[asay]")
+					else
+						winset(src, "default-[REF(key)]", "parent=default;name=[key];command=")
 
 /client/proc/change_view(new_size)
 	if (isnull(new_size))