[gnome-shell] (20 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:

  b64201f... shew: Use Xlib to set transient hint
  28046eb... extensions-app: Remove stray angle brackets
  4864c30... extensions-app: Set title on window instead of headerbar
  48416d3... extensions-app: Use consistent style for property names
  8975db2... extensions-app: Don't use deprecated margin-left/right prop
  acb518a... extensions-app: Stop using :margin shortcut
  16115d8... extensions-app: Don't keep ref to main window
  d0b810b... extensions-app: Clean up when window is unrealized
  d5601fc... dbusServices/extensions: Minor cleanup
  30c15ea... dbusServices/extensions: Set title on window instead of hea
  68f14f4... dbusServices/extensions: Use consistent style for property 
  31a0c92... dbusServices/extensions: Stop using :margin shortcut
  e1d6b9c... dbusServices/extensions: Stop using GtkContainer API
  4e81c29... dbusServices/extensions: Stop using GtkToolbar
  e1da04d... dbusServices/extensions: Stop stacking frames
  24b93b6... dbusServices/extensions: Remove event box
  6dc16d5... Port extensions app and portal to GTK4

Commits added to the branch:

  ee0f250... appDisplay: Don't update multiline for search results (*)
  244c266... st-bin: Disallow st_bin_set_child with already-parented chi (*)
  ef80761... credentialManager: Shut up a JS warning (*)
  84bf6d8... shew: Use Xlib to set transient hint
  72d01fd... extensions-app: Remove stray angle brackets
  6924039... extensions-app: Set title on window instead of headerbar
  5c7fc42... extensions-app: Use consistent style for property names
  30c6b04... extensions-app: Don't use deprecated margin-left/right prop
  6698c4c... extensions-app: Stop using :margin shortcut
  c2a91c7... extensions-app: Don't keep ref to main window
  5665ec1... extensions-app: Clean up when window is unrealized
  61624a3... dbusServices/extensions: Minor cleanup
  71a481d... dbusServices/extensions: Set title on window instead of hea
  5b791f9... dbusServices/extensions: Use consistent style for property 
  0af60be... dbusServices/extensions: Stop using :margin shortcut
  ef5c4ab... dbusServices/extensions: Stop using GtkContainer API
  9209e04... dbusServices/extensions: Stop using GtkToolbar
  4045371... dbusServices/extensions: Stop stacking frames
  df1057a... dbusServices/extensions: Remove event box
  56c9cf7... Port extensions app and portal to GTK4

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