theme: use gtk_render_icon_suface to paint button icon

This will properly take care of the icon transformations
and of the shadow.

Fixes #100

Bug: https://gitlab.gnome.org/GNOME/mutter/issues/100
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1764558
Forwarded: yes, https://gitlab.gnome.org/GNOME/mutter/merge_requests/62

Gbp-Pq: Name theme-use-gtk_render_icon_suface-to-paint-button-icon.patch

mutter (3.28.3-1) unstable; urgency=medium

  * New upstream release
  * d/p/backends-Add-logical-monitor-monitor-output-crtc-ref-chai.patch,
    d/p/backends-Move-MetaOutput-crtc-field-into-private-struct.patch,
    d/p/clutter-device-evdev-Get-devices-from-main-seat-if-no-rea.patch,
    d/p/clutter-evdev-Don-t-ignore-CAPS-lock-as-modifier.patch,
    d/p/clutter-evdev-ignore-injected-events-from-IM.patch,
    d/p/clutter-seat-evdev-Add-function-to-get-device-by-id.patch,
    d/p/device-manager-evdev-Add-main-seat-to-seats-by-default.patch,
    d/p/device-manager-evdev-Free-the-main-seat-on-finalize.patch,
    d/p/device-manager-evdev-Set-and-unset-the-stage-for-the-main.patch,
    d/p/frames-Allow-for-unknown-mouse-buttons.patch,
    d/p/frames-Handle-touch-events.patch,
    d/p/frames-Make-1st-button-motion-handlers-take-generic-event.patch,
    d/p/renderer-native-Don-t-crash-if-the-FB-surface-can-t-be-lo.patch,
    d/p/wayland-Compare-geometries-after-chaining-up.patch,
    d/p/wayland-Don-t-reset-input-focus-on-text-commit.patch,
    d/p/wayland-Use-cursor-position-in-logical-monitor.patch,
    d/p/wayland-update-enter-leave-output-after-effects.patch,
    d/p/window-actor-add-new-signal-effects-completed.patch:
    Remove patches already applied on 3.28 branch

[dgit import unpatched mutter 3.28.3-1]

Import mutter_3.28.3.orig.tar.xz

[dgit import orig mutter_3.28.3.orig.tar.xz]

Import mutter_3.28.3-1.debian.tar.xz

[dgit import tarball mutter 3.28.3-1 mutter_3.28.3-1.debian.tar.xz]