## Issue
85: "user joined livestream"
## Approach
Add it into the existing "player :: action" event, so we can compare it againts `loaded_video | loaded_image | loaded_markdown | loaded_audio`.
## Issue
~300KB savings in `ui.js` size (production, uncompressed). Mostly coming from the emoji library.
## Notes
Most of the `Comment*` components are under `CommentsList` or `LivestreamComments`, so deferring these 2 covered most of it. The exceptions are Notification and OwnComments.
- remove anon option in channel dropdown when livestream tab is selected
- attempt to fill publish form with current active channel name just prior to publishing to (edge condition)
- edge condition occurs when user fills out form fully. User switches to Post (which allows anon in drop down selector). User selects Anon channel, then switches back to the livestream tab. The form was previously updated with `channel: undefined` but does not get changed when clicking the livestream tab. So we just updated the form one last time prior to publishing as a livestream
- Show most recent livestream claim on livestream setup page instead of first livestream claim
