Fixes #11008

Add new Chat Stack to aid in the upcoming refactor

bodqhrohro authored Jun 21, 2022 and Philipp Hörist committed Jun 21, 2022

The nickname is now also shown in the notification and passed to the AddContact dialog, which afterwards adds the nickname to the roster.

Fixes #10933

Fixes #10988

Fixes #10997

Fixes #10981

Supported color scheme states/values are
  0: No preference
  1: Prefer dark appearance
  2: Prefer light appearance

https://flatpak.github.io/xdg-desktop-portal/#gdbus-org.freedesktop.portal.Settings

Fixes #10996.

There is no way for Gajim to update the plugins. Let flatpak handle this.

Allow "-" in domain part

Add more url delimiters

Use one combined regex for uris and addresses so we get no overlaps

Fixes #10974

<Primary>R show/hides the chat list