* Fix chat filter button
Oh look, the popup code was copy pasted between chat filter and channel selector.
Hilarious.
Anyways same stuff as 995f506aafd770dd6572dfc9e7bf9e18186e485a. I pulled it all out into a base class so NO MORE COPY PASTE.
Fixes#22360
* Remove all further EnableAllKeybinds buttons.
Fixes#22346
Yeah none of these are valid use cases, why is this set...
* split admin chat into new channel
* add ability to play audio when a chat message is received and add audio to admin chat
* give client control of AdminChat sound and volume + suppress sound for senders
* attempt at moving MainViewport to UIWidget
* oldchat (prototype)
* separate oldchat and default ss14 HUD into their own files
* restores original default game screen logic and adds that logic into separated chat game screen
* hand reloading, several tweaks to port oldchat to main ss14 branch
oldchat is currently not selectable
* screen type cvar, gameplay state screen reloading/loading
* reload screen on ui layout cvar change
* fixes up basic reloading (HUD switching is still very bad)
* some UI widget reloading for main UI screen switching
* alert sync on screen change
* inventory reload
* hotbar margin fix
* chat bubbles above viewport
* whoops
* fixes ordering of speech bubble root
* should fix the chat focus issue (at least in-game, not lobby yet)
* should fix up the lobby/game chat focus
* fixes chat for lobby, turns lobby into a UI state
* viewport UI controller
* viewport ratio selection
* whoops
* adds the /tg/ widescreen ratio
* removes warning from inventory UI controller, adds background to separated chat game screen's chat portion
* menu button reload
* unload menu buttons only from gameplay state shutdown
* bugfix
* character button fix
* adds config options for viewport width/UI layout
* variable naming changes, get or null instead of get to avoid exceptions
* moves entity system get into controller
