libadwaita: update 1.5.0 -> 1.5.1

libadwaita: update 1.5.0 -> 1.5.1

=============
Version 1.5.1
=============

- AdwAboutDialog/Window
  - Fix an outdated appstream reference in docs
- AdwActionRow
  - Mention .property in docs
- AdwAlertDialog
  - Fix the accessible role
  - Fix initial focus
- AdwAvatar
  - Fix portrait avatars on hidpi
- AdwBin
  - Fix a potential focus issue
- AdwBreakpoint
  - Fix add_setter() annotations
- AdwCarousel
  - Fix a build warning
- AdwComboRow
  - Fix initial checkmark
  - Handle model changes properly
- AdwDialog
  - Fix accessibility warnings
  - Make shortcuts work when there are no focusable widgets
  - Correctly restore focus when opening a dialog from a menu
  - Fix GtkWindow:deletable=false hiding close buttons in dialogs
- AdwExpanderRow
  - Fix get_title_lines() and get_subtitle_lines() return types
  - Fix remove() docs
- AdwOverlaySplitView
  - Unmap sidebar when it's hidden
- AdwPreferencesGroup
  - Fix a potential focus issue
  - Fix :header-group annotations and notifications
- AdwPreferencesPage
  - Fix a potential focus issue
- AdwTabView
  - Document :close-page return value
  - Fix a leak when closing the last page
- AdwViewStack
  - Fix a typo in docs
- Docs
  - Update screenshots
- Stylesheet
  - Fix entry progress bars
- Add missing return annotations
- Translation updates
  - Brazilian Portuguese
  - Hindi
  - Kabyle
  - Portuguese
  - Slovak

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>