- Factor out for re-use in upcoming Shared Blocklist
- Improvements:
- Uses floating popup to show the suggestion/result rather than inline.
- Users can now press Enter to select the suggestion, instead of having to use the mouse.
- Users now don't need to enter '@' for channel names. They will still need to enter the full channel name, and disambiguate with claim_id if necessary.
- Fix jumpiness in position as the user types.
Quick fix for the lack of scroll lines for the upcoming "moderator search popup". The proper fix would be to move the popup above the input when we are at the extreme bottom.
