[gnome-tweaks] (6 commits) Non-fast-forward update to branch alatiera/flatpak-manifest

[Evan Welsh <ewlsh src gnome org>]

The branch 'alatiera/flatpak-manifest' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  1ad5889... Add Flatpak manifest
  505c870... build: Use python module instead of deprecated python3 modu
  152bf70... build: Fix python files installation handling
  18604d4... Get Flatpakt

Commits added to the branch:

  db7b279... Fix default window sizing and requests. (*)
  1c7a5b2... build: Use python module instead of deprecated python3 modu (*)
  437de67... Add Flatpak manifest (*)
  7c88cf1... flatpak: add dbus sockets and libhandy. (*)
  24f831c... Implement __getitem__ to properly mock GSettings. (*)
  c9b93f6... Handle missing xsettings in flatpak. (*)

(*) This commit already existed in another branch; no separate mail sent