copyables WIP
Merge branch 'master' into copyables

* master: (105 commits)
  lt "lietuvių kalba" translation #7609. Author: KissMeHarder.
  et "eesti keel" translation #7608. Author: luuletaja.
  ar "العربية" translation #7604. Author: amayem.
  pl "polski" translation #7603. Author: mietk. added translations for the puzzle section
  ca "Català, valencià" translation #7602. Author: Vitus.
  nl "Nederlands" translation #7597. Author: Awkwarada. A few grammatical changes
  fi "suomen kieli" translation #7594. Author: JulianGoater.
  mn "монгол" translation #7589. Author: odko8893.
  report notification icon
  show harder puzzles
  don't compute puzzle average solving time
  optimize SVG images
  improve average lag calculation
  fix team recent forum posts
  use clearfix2 in team content
  hide puzzle win rate
  hu "Magyar" translation #7581. Author: hun-vighim.
  de "Deutsch" translation #7580. Author: mupel69.
  hu "Magyar" translation #7579. Author: wheeler8.
  ro "Română" translation #7578. Author: bobu. le-am tradus pe alea lipsa
  ...
remove single analysis API call
game api shouldn't return in progress games
improve board editor copyable url and fen string
improve analyse mode FEN and PGN