[gnome-maps] (13 commits) ...shape-layer-row: Modernize widget heirarchy

[Marcus Lundblad <mlundblad src gnome org>]

Summary of changes:

  07dca17... mainWindow: Port to AdwAboutWindow (*)
  4e9d39c... general: Use GtkButton:icon-name instead of manually packin (*)
  b49dda4... sidebar: Link route buttons (*)
  04f5272... general: Rework context menu (*)
  864bafa... placesPopover: Use libadwaita menu styles (*)
  2586483... placesPopover: Remove arrow (*)
  6b33f62... css: Remove `.maps-popover` style class (*)
  dcbb325... placePopover: Stop hardcoding height (*)
  f08049d... favoritesPopover: Use libadwaita popover styles (*)
  3029bdb... placeListRow: Revamp widget heirarchy (*)
  684a8e9... general: Use present() instead of show_all() (*)
  460091b... layersPopover: Use GMenuModel (*)
  4e29e94... shape-layer-row: Modernize widget heirarchy (*)

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