Merge remote-tracking branch 'upstream/develop' into themes-accent

* upstream/develop: (33 commits)
  add emoji reactions to changelog
  fix emoji reaction classes broken in develop
  review changes
  Fix password and email update
  remove unnecessary anonymous function
  Apply suggestion to src/services/api/api.service.js
  remove logs/commented code
  remove favs count from react button
  remove mock data
  change emoji reactions to use new format
  Added polyfills for EventTarget (needed for Safari) and CustomEvent (needed for IE)
  Fix missing TWKN when logged in, but server is set to private mode.
  Fix follower request fetching
  Add domain mutes to changelog
  Implement domain mutes v2
  change changelog to reflect actual release history of frontend
  Fix #750 , fix error messages and captcha resetting
  Optimize Notifications Rendering
  update CHANGELOG
  Use last seen notif instead of first unseen notif for sinceId
  ...