[gnome-shell] (35 commits) ...background: Remove noise texture

[Florian Müllner <fmuellner src gnome org>]

Summary of changes:

  e90940a... screenShield: Remove arrows (*)
  143cda6... screenShield: Move clock to Unlock Dialog (*)
  d3cfb58... unlockDialog: Adjust date format (*)
  54e2d3c... unlockDialog, loginDialog: Add a 'wake-up-screen' signal (*)
  73eaf0d... screenShield: Move notifications to Unlock Dialog (*)
  2b39d6e... screenShield: Remove unused 'onPrimary' argument (*)
  15b5941... screenShield: Move background to Unlock Dialog (*)
  5d88729... unlockDialog: Blur background (*)
  baa5bfc... screenShield: Remove _lockScreenContents and family (*)
  78fd9d9... screenShield: Always show session's unlock dialog (*)
  1b84a3e... unlockDialog: Don't destroy on cancel (*)
  66a3ad4... screenShield: Remove the drag action from the shield (*)
  308b4f8... screenShield: Cleanup unused method arguments (*)
  febc069... screenShield: Remove scrolling (*)
  e42700a... screenShield: Lift the unlock dialog (*)
  7851069... screenShield: Activate dialog when necessary (*)
  cd09144... screenShield: Rename _liftShield to _activateDialog (*)
  c1ee656... screenShield: Only animate the unlock dialog (*)
  16dcb1a... screenShield: Move lock shield below dialog (*)
  c20451c... sessionMode: Remove lock-screen mode (*)
  4081b97... theme: Adjust lock screen clock fonts (*)
  6493789... unlockDialog: Introduce UnlockDialogLayout (*)
  f02313c... screenShield: Remove key press event handler (*)
  b59c9c6... unlockDialog: Move auth prompt and clock to a ShellStack (*)
  b9c7631... unlockDialog: Toggle between clock and auth prompt (*)
  3651cb2... unlockDialog: Show clock when canceling or failing auth (*)
  05c918d... unlockDialog: Use just the counter to format notifications (*)
  bd0bf3d... unlockDialog: Line notification labels horizontally (*)
  893bde0... theme: Adjust style of lock screen notifications (*)
  2644f62... unlockDialog: Add .critical CSS class to critical notificat (*)
  37e55df... unlockDialog: Create auth prompt on demand (*)
  727c842... screenShield: Rework key focus management (*)
  fd48409... screenShield: Cleanup _ensureUnlockDialog (*)
  84c7890... screenShield: Remove lock screen group from Crtl-Alt-Tab ma (*)
  dee738e... background: Remove noise texture (*)

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