[libadwaita] (14 commits) Non-fast-forward update to branch wip/exalm/a11y-fixes

[Christopher Davis <christopherdavis src gnome org>]

The branch 'wip/exalm/a11y-fixes' 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:

  4c4432a... view-switcher-button: Set mnemonic in init()
  e3c42ee... status-page: Set a11y relations
  64017d8... action-row: Set described-by
  0d29d5d... gizmo: Copy new_with_role() from GTK
  fd0097c... window-mixin: Set up widget roles
  6936a78... shadow-helper: Set up widget roles
  e5b9520... split-button: Fix the a11y role in docs
  ea87c38... status-page: Set presentation role for the icon
  91588b0... preferences-page: Set accessible role
  a6e1b0e... preferences-group: Set accessible role
  e8bfade... demo: Set tooltip on split buttons

Commits added to the branch:

  8ccfbb6... demo: Remove app-notification style demo (*)
  82baa62... doc: Add Initialization page (*)
  9ac9bff... Add a hello world example (*)
  99acc43... view-switcher-button: Set mnemonic in init()
  c0319ba... status-page: Set a11y relations
  b277ad6... action-row: Set described-by
  7869f18... gizmo: Copy new_with_role() from GTK
  9fad296... window-mixin: Set up widget roles
  f0c0064... shadow-helper: Set up widget roles
  c1e8d31... split-button: Fix the a11y role in docs
  25d6e46... status-page: Set presentation role for the icon
  dfc1329... preferences-page: Set accessible role
  7b3af16... preferences-group: Set accessible role
  861c0b6... demo: Set tooltip on split buttons

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