add support for axis_relative_direction event (wlroots!4003)

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4003

Revert "drop wl_drm (wlroots!4397)"

There still a lot software that uses this protocol

This reverts commit facbe57fcbe74d27809eefdfe6aaac5150fbb954.

Merge remote-tracking branch 'upstream/main' into wlroots-next

No need to call updatemons ourselves

The output manager in wlroots emits an output_layout.change event when
anything changes, so updatemons will be called anyway.

ΔSLOC: -1

drop unused variable

turn on -Wfloat-conversion

turn on -Wsign-compare

check if monitor is null before setting gamma

fixes segfault on monitor disconnect when using wlsunset

drop wl_drm (wlroots!4397)

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4397

Destroy fullscreen node after moving clients off mon

don't send configure events to uninitialized xdg-toplevels

don't send configure events to uninitialized xdg-popups

fix posible NULL-dereference in wl_surface.commit handler

only create wlr_presentation (wlroots!4482)

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4482

Merge remote-tracking branch 'upstream/main' into wlroots-next

unset DISPLAY before setting up xwayland

only execute the first keybinding

more style fixes

missed from the previous iteration

Merge remote-tracking branch 'upstream/main' into wlroots-next

create a wlr_keyboard_group for virtual keyboards

Fixes: https://codeberg.org/dwl/dwl/issues/554