* split emoji into local and remote, allow looking up remote emoji by toot url
* optimize some/all filtering
* fix local emoji routes
* implement copy action
* shortcode validation, don't wipe form on error
* copy & disable PATCH
* remove local toot acceptance for testing
* unused import
* parse emoji from account and status, get web_url from status uri
* fix url parse
* submit button loading info
* actually send category
* code cleanup, distinguish between account and status responses
* use loading icons
* fix loading icon on federation page
* require Loading element
* remove unused require
* query explanation, small accessibility tweaks
