improve type safety of toplevel_from_wlr_surface()

merge toplevel_from_{wlr_layer_surface,popup} into client_from_wlr_surface

now it is a big function called toplevel_from_wlr_surface

remove unneeded call to wlr_scene_rect_set_color()

wlr_scene_rect_create() requires a color as parameter

add option for set button map

fix null deref in sigchld() if Xwayland is disabled

remove unneeded changes in commitnotify()

fix flickering when resizing/spawning windows

Fixes: https://github.com/djpohly/dwl/issues/306

use root surfaces to check idle inhibitors

References: https://github.com/djpohly/dwl/pull/343

Revert "Check that inhibitor scene tree is not null"

This reverts commit 9c155eefdc018f878ea6950e6bd383b985401339.

This commit was applied just a workaround, the proper fix is the next commit

Check that inhibitor scene tree is not null

unset fullscreen when mapping a client in the same monitor

Fixes: https://github.com/djpohly/dwl/issues/327

Merge branch 'main' of github.com:djpohly/dwl

simplify check for surface's node state

all `struct wlr_surface` should have a `wlr_scene_tree *` as data

add option to allow invisible surfaces to disable idle tracking

do not move/resize if grabbed client is fullscreen

do not try to set the parent's same tags and monitor for xwayland clients

References: https://github.com/djpohly/dwl/pull/334#issuecomment-1330166324

Fix comparison between signed and unsigned int

When c->bw is 0, the right side of the MAX functions gets turned into an unsigned integer and that results in -1 being the outcome.
This causes big issues in xwayland clients.

Revert "Add a configuration option for fullscreen locking"

now all fullcreen clients are rendered above tiled and floating clients

This partially reverts commit 326eee14445f8a2c08e80c30778445630c75d3bb.

create a dedicated layer for fullscreen clients

Bug: https://github.com/djpohly/dwl/issues/327

rename xwayland_surface to xsurface

this save us 2 lines