Merge branch 'wlroots-next' into HEAD

`wlr_xdg_surface.configure_serial` has been moved into `wlr_xdg_surface_state`

as seen in swaywm/wlroots@0e34208

Merge pull request #150 from Sevz17/wlroots-next

client_pending has been renamed as pending in wlr_layer_surface_v1

client_pending has been renamed as pending in wlr_layer_surface_v1

as seen in swaywm/wlroots@59fa363

send frame_done to all visible surfaces

fixup: follow name change on surface_tree_create

use scene_output for damage-tracked rendering

use scene to keep track of LayerSurfaces' layers

use scene-graph API for Client/LayerSurface

use type enum to distinguish Client from LayerSurface

Merge branch 'main' into wlroots-next

simplify fullscreen expression

Merge branch 'main' into wlroots-next

simplify client_for_each_surface

All the XDG surface iterator does is iterate the main wlr_surface, then
iterate the popups.  If we inline that function, we can merge part of it
with the X11 case.

Merge branch 'main' into wlroots-next

update deprecated xkb function name

Merge pull request #145 from PalanixYT/wlroots-next

wlr_layer_surface_v1_close has been replaced by wlr_layer_surface_v1_…

wlr_layer_surface_v1_close has been replaced by wlr_layer_surface_v1_destroy

Merge pull request #136 from guidocella/presentation-time

implement the presentation time protocol

Merge pull request #130 from drdonahue/printstatus-fix

Fix excessive printstatus() calls when dmenu is up