[gnome-games] (21 commits) Non-fast-forward update to branch wip/exalm/libhandy2

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/libhandy2' 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:

  cde931e... ui: Add PreferencesSubpage
  85e66a0... preferences-page: Add 'subpage' property
  fd5af52... preferences-window: Integrate subpages
  da72238... ui: Convert GamepadConfigurer into a subpage
  0c0b7d6... ui: Convert KeyboardConfigurer into a subpage
  6d441b8... preferences-page-controllers: Simplify layout
  c74e00d... ui: Remove immersive mode from preferences
  1bbaf97... ui: Remove visible_page_changed() from PreferencesPage
  eaf7c07... ui: Drop custom headerbars from preferences pages
  37d3db0... flatpak: Build libhandy
  0a5055a... ci: Build libhandy for cross_distro targets
  3aeb095... build: Add libhandy dependency
  d58ccc0... fixme: Add css from libhandy example
  37509d6... ui: Use HdyColumn for preferences pages
  426be58... ui: Use HdyLeaflet in preferences window
  c1bb7bb... ui: Use HdyTitleBar in preferences window
  d9e3b85... ui: Add PreferencesSidebar
  e8543ce... preferences-window: Use PreferencesSidebar

Commits added to the branch:

  68cd930... flatpak: Build libhandy
  7bf306c... ci: Build libhandy for cross_distro targets
  397325c... build: Add libhandy dependency
  30c29e6... fixme: Add css from libhandy example
  363af74... preferences-window: Add .sidebar style class to separators
  01bf8a6... preferences-window: Wrap titlebar into a HdyTitleBar
  11de716... ui: Add PreferencesSubpage
  8ed5889... preferences-page: Add 'subpage' property
  a8db712... preferences-window: Integrate subpages
  762d697... ui: Convert GamepadConfigurer into a subpage
  e11944a... ui: Convert KeyboardConfigurer into a subpage
  75f09fc... preferences-page-controllers: Simplify layout
  92b2915... ui: Remove immersive mode from preferences
  de5f540... ui: Remove visible_page_changed() from PreferencesPage
  0e70d05... ui: Drop custom headerbars from preferences pages
  d82b161... preferences-page-controllers: Wrap into a HdyColumn
  a5a607e... preferences-page-plugins: Wrap into a HdyColumn
  986c893... preferences-page-video: Wrap into a HdyColumn
  d54deb1... ui: Use HdyLeaflet in preferences window
  60e398c... ui: Add PreferencesSidebar
  6202cfa... preferences-window: Use PreferencesSidebar