check if a client is unmanaged checking the o-r flag

it may change at any moment and I don't really want to add a listener for it

Merge branch 'wlroots-next'

Do not send repeated xdg_toplevel.configure_bounds

Fixes: 32e66f45827cc8016ca2cef65ba61840f43fcc85

check toplevel resource instead of client's xdg_shell to set bounds

use the new wlroots function to get a toplevel from a wlr_surface

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4419

explicitly return -1 in the first check in toplevel_from_wlr_surface

do not use #ifdef -> #else -> #endif in client_is_x11

all other funcions use #ifdef -> #endif

delete unused functions

style fixes in client_is_float_type

correctly check if the scene node is enabled in client_is_rendered_on_mon

do not use magical numbers to check edges

the interface is declared stable, which means we could just use 0 anyway

simplify client_get_clip

the clips for xwayland and xdg clients are pretty similar, after all we only
need to adjust x and y for xdg clients

use wlr_scene_subsurface_tree_set_clip

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4131
Closes: https://github.com/djpohly/dwl/issues/411

Revert "respect size hints"

This reverts commit 72e0a560d9836c5e8658003f548203bcd722e565.

send maximized if tiled isn't supported (XDG shell)

wlroots doesn't do it automatically anymore

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4409

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

simplify setting the border color of clients

chase wlroots!4288

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4288

set withdrawn state for xwayland invisible clients

add support for xdg-shell v6