* Integrate chat from upstream
Substantially borrowed from upstream ref: 13a208ee88e55 (before they
started editing generated artefacts instead of source).
Integrated, including:
- Remove previously removed features: emoji, hats, and name colors
- Compensate for lack of unified root template
- Add React build process to Dockerfile and `bootstrap/init.sh`
- Preliminary integration of chat websocket workers
For testing, modify `supervisord.conf.dev` to put chat on port 80 and
the site service on some other port. Then visit: http://localhost/chat
Still to do:
- Access control for specific small-groups (and admins probably):
Set the values somewhere (site_settings.json? Redis?) and use for
authorization in `chat_is_allowed`.
- Proxying only /chat to the websocket workers
- Chat persistance across restarts: either Redis devops or to DB
* Add nginx server to do appropriate redirection.
* Add necessary columns to User.
* Wire up chat permissions.
* Reload chat on source change.
* Add a better structure for slash commands and add/remove functionality.
* Stop putting up previews of slash commands.
* We require more whitespace.
* Strip DMs out entirely, I currently do not want to deal with them.
* Change "Users Online" to just "Users".
* Clean up a little more DM detritus.
* Save chat history in database.
* Remove unnecessary hefty query to the DB.
* Clean up optimistic messages.
* Initial implementation of notification icon.
* Update readme a little bit.
* Fix notification highlight (mostly).
* Remove chat version number that will never be updated.
* Fix: Errors on logged-out users.
* Add function to nuke the chat state.
* Update DB.
* Add a dedicated deployable docker image.
* Fix: init_build.sh execute bit not set.
* Whoops, screwed up the abort() call.
* Relax chat rate limiter.
* Remove a somewhat silly comment.
* Remove an unnecessary g.db.add().
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Co-authored-by: TLSM <duolsm@outlook.com>
