[libpanel] Created tag 1.0.alpha1

[Christian Hergert <chergert src gnome org>]

The unsigned tag '1.0.alpha1' was created.

Tagger: Christian Hergert <chergert redhat com>
Date: 1659740028 -0700

    Release 1.0.alpha1

Changes since the last tag '1.0.alpha':

Alexander Mikhaylenko (3):
      stylesheet: Refine statusbar styles
      stylesheet: Make statusbar rounded button style more robust
      statusbar: Make button rounding styles more specific

Christian Hergert (16):
      build: ensure enums are generated for tests
      Merge branch 'wip/exalm/styles' into 'main'
      panel-frame-switcher: use G_PI instead of M_PI
      Merge branch 'wip/exalm/styles' into 'main'
      build: bump GLib required version
      build: bump GTK required version
      animation: remove PanelAnimation
      widget: give access to muxed page actions from frame
      libpanel: drop foreground/background rgba abstractions
      build: cleanup private vs public sources
      action-muxer: add support for class actions and property actions
      widget: use maximize as action name
      widget: implement page.save action from PanelWidget
      action-muxer: fix parameter type for class actions
      omnibar: add action-tooltip
      Release libpanel 1.0.alpha1