[gnome-shell] (26 commits) Non-fast-forward update to branch wip/fmuellner/fix-stable-ci

[Florian Müllner <fmuellner src gnome org>]

The branch 'wip/fmuellner/fix-stable-ci' 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:

  f662864... st: Only emit ::style-changed on actual changes
  78d6ccd... ShellApp: Use g_signal_connect_object for window signals
  c7ac5ee... ci: Silence some warnings
  6988732... ci: Fix checking out mutter for stable branches

Commits added to the branch:

  ffaca00... appMenu: Add separator between "Details" and "Quit" (*)
  d2dc072... appMenu: Remove separator in window section (*)
  d4763b1... appMenu: Add heading to windows section (*)
  56a3616... appIconMenu: Sync windows section with app menu (*)
  49c95cf... theme: Update window preview style (*)
  526bb72... environment: Warn when trying to access a deprecated actor  (*)
  1be933b... boxpointer: Don't use boxpointer actor, as it's now an acto (*)
  fedb8e7... panelMenu: Remove usage of this.actor from Button (*)
  ad491e7... iconGrid: Remove this.actor definition to BaseIcon (*)
  bea6045... messageTray: Remove this.actor definition to SourceActor (*)
  be2d630... panel: Remove this.actor definition to self (*)
  2d30e31... workspaceSwitcherPopup: Remove this.actor definition to sel (*)
  44fcb9e... workspaceThumbnail: Remove this.actor definition to Thumbna (*)
  7bb84da... popupMenu: Make MenuManager to take an actor as parameter (*)
  1e3a174... na-tray-manager: Add missing `void` to functions with no ar (*)
  1dff32e... hotplug-sniffer: Add gnu_printf format attribute (*)
  2b1d6e6... calendar-server: Add gnu_printf format attribute (*)
  9593e20... meson.build: Add more compilation warnings (*)
  03c4930... util: Fix compiler warning (*)
  4d4d5a0... shell, st: Adjust to CoglPipeline API changes (*)
  59edea4... workspacesView: sync gesture enabled state after setting it (*)
  f74c07b... st: Only emit ::style-changed on actual changes (*)
  218c879... Updated Spanish translation (*)
  0f531d8... ShellApp: Use g_signal_connect_object for window signals (*)
  7f992f1... ci: Silence some warnings
  16afa94... ci: Fix checking out mutter for stable branches

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