3.23.90 - "Get a Room!"
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* Add spell check support to entry [Florian; #709956]
* Add room list to join dialog [Florian, Isabella; #763200]

Contributors:
  Christian Hergert, Sam Hewitt, Matthew Leeds, Florian Müllner,
  Isabella Ribeiro

Translations:
  Baurzhan Muftakhidinov [kk], Jiri Grönroos [fi], Fábio Nogueira [pt_BR],
  Piotr Drąg [pl], Dušan Kazik [sk], Benjamin Steinwender [de],
  Mandy Wang [zh_CN], Efstathios Iosifidis [el],
  Inaki Larranaga Murgoitio [eu], Kukuh Syafaat [id], Kjartan Maraas [nb]