Implements an Add-on Loader so that other add-ons, such as the FFZ Add-on Pack, can be loaded directly by FFZ without requiring the user to install multiple extensions into their browser.
* Added: Option to hide Squad Streaming banners on channel pages.
* Changed: Rewrite the entire i18n system to use the standard ICU message format.
* Changed: Render the context menu for chat messages in Chat on Videos.
* Fixed: Badges not appearing correctly in chat.
* Fixed: Messages in Chat on Videos with embeds appearing too wide.
* Fixed: Rename all references to `tw-c-background` to `tw-c-background-base` and `tw-c-text` to `tw-c-text-base` to fix rendering issues with FrankerFaceZ's custom UI due to Twitch CSS changes.
* Update all usages of `tw-input` and `tw-select` to use the new, overly-verbose classes Twitch added.
* Add a few of the monkey faces to the local emote code to make them work.
* Override emotes when building the emote code <-> id map, to let emotes from higher sets override global emotes.
* 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.
* Add automatic error reporting with Sentry.io
* Filter a bunch of bad errors from showing up on Sentry
* Add module.hasModule method.
* Fix deep_copy
* Fix disallow mouse interaction with extensions
* Add some new icons to the icon font for mod cards
* Allow Ctrl-Shift-Clicking emotes.
* Rarity sorting for experiments and unset display for unused experiments.
