[gnome-shell] (19 commits) Non-fast-forward update to branch wip/fmuellner/gtk4

[Florian Müllner <fmuellner src gnome org>]

The branch 'wip/fmuellner/gtk4' 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:

  f0e15db... shew: Use Xlib to set transient hint
  3fe7794... extensions-app: Remove stray angle brackets
  db0d746... extensions-app: Set title on window instead of headerbar
  271d0fd... extensions-app: Use consistent style for property names
  e96979a... extensions-app: Don't use deprecated margin-left/right prop
  4989887... extensions-app: Stop using :margin shortcut
  6ff91fa... extensions-app: Stop using GtkContainer API
  6b930b4... dbusServices/extensions: Minor cleanup
  707abf1... dbusServices/extensions: Set title on window instead of hea
  293119e... dbusServices/extensions: Use consistent style for property 
  234c882... dbusServices/extensions: Stop using :margin shortcut
  327d363... dbusServices/extensions: Stop using GtkContainer API
  1cc5da4... dbusServices/extensions: Stop using GtkToolbar
  5de5971... dbusServices/extensions: Stop stacking frames
  8447c89... dbusServices/extensions: Remove event box
  da0d89e... Port extensions app and portal to GTK4

Commits added to the branch:

  8c13e38... ci: Use node-js script for running eslint (*)
  4401c8f... ci: Use junit output format (*)
  25ca882... ci: Enforce non-legacy style for new code (*)
  2e6210c... shew: Use Xlib to set transient hint
  90f11f0... extensions-app: Remove stray angle brackets
  85c2155... extensions-app: Set title on window instead of headerbar
  1340b27... extensions-app: Use consistent style for property names
  27e26ee... extensions-app: Don't use deprecated margin-left/right prop
  51d0607... extensions-app: Stop using :margin shortcut
  d15b80b... extensions-app: Stop using GtkContainer API
  c0da5f9... dbusServices/extensions: Minor cleanup
  1c83ade... dbusServices/extensions: Set title on window instead of hea
  380affe... dbusServices/extensions: Use consistent style for property 
  0fcdad9... dbusServices/extensions: Stop using :margin shortcut
  3cd7037... dbusServices/extensions: Stop using GtkContainer API
  3acf3bc... dbusServices/extensions: Stop using GtkToolbar
  00a1f3b... dbusServices/extensions: Stop stacking frames
  2f3117c... dbusServices/extensions: Remove event box
  200b613... Port extensions app and portal to GTK4

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