v0.12.4-rc.4

Full Changelog

• Update from Weblate.
  #1904
• Correctly identify sticker picker widgets
  #1894
• Quick fix for sticker picker position
  #1903
• Remove redundant logging (currently shown on every render when no sti…
  #1901
• Fix stickers briefly being 2x the size
  #1899
• Send required properties when making requests to widgets over postMessage
  #1891
• Fix room widget second load infini spinner
  #1897
• Update widget state when account data changes
  #1896
• Remove margins when in a ReplyThread to stop them taking so much space
  #1882
• Add setting to enable widget screenshots (if widgets declare support)
  #1892
• T3chguy/replies html tag
  #1889
• Instant Sticker Picker
  #1888
• Update widget 'widgetData' key to 'data' to match spec.
  #1887
• Fix 'state_key' field name.
  #1886
• Improve appearance of short-lived app loading spinner
  #1885
• Take feature_sticker_messagse out of labs
  #1883
• Fix issue incorrect positioning with widget loading indicator
  #1884
• Users should always be able to edit their user/non-room widgets
  #1879