The In-Line Actions Update

* Add extensible actions system.
* Add extensive UI for configuring the actions system.
* Add setting to disable channel hosting.
* Fix the stupid Rooms thing popping up every time you open a channel.
* Fix how we grab chat types from React.
* Refactor how we handle incoming chat messages.
* Add a hook for outgoing chat messages.
* Fix emoji appearing squished with baseline emote alignment.
* Display arrows on balloons.
* Fix an issue generating emoji URLs.
* Do not use the default values for settings with merge strategies if profiles have those settings, just empty.
* Display a message in the chat settings menu if we tried opening FFZ's settings and failed.
* Wait a bit for webpack's loader if it's not immediately there for some reason.
* Probably other stuff.
* Not mod cards. Yet.

src/utilities/object.js

@@ -246,6 +246,11 @@ export function pick_random(obj) {
 }
 
 
+export const escape_regex = RegExp.escape || function escape_regex(str) {
+	return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
+
 export class SourcedSet {
 	constructor() {
 		this._cache = [];