use the same style for urgent() and sethints()

remove an unneeded cast in createpointer()

avoid duplication of lines

the output state is copied when creating a output configuration head

add explanation about why we try to re-apply the gamma LUT on output changes

relax a bit the line length limit

add a blank line to improve readability

use (struct wlr_box){0} to empty the Monitor areas

copy layout symbol when matching a MonitorRule

remove extra blank line

LayerSurface::link -> LayerSurface.link

set the correct border color when mapping a client

reduce calls to client_get_geometry

add a note about not removing the default rule

Closes: https://codeberg.org/dwl/dwl/issues/527

Update README.md

store the layersurface pointer in l->popups->node.data as well

make sure popups of a layer surface are in the correct layer

previously it worked because we checked in every commit the layer
in a353eee2cac0378a4201e408a3417aa107a7f647 and
b100b446b8c82bc2dcdbb40856ab87ed4a4ad594
we changed the way it's handled and now if the layer surface does not change
the layer we don't it either. meaning that if it was created in the bottom
layer and did not change the layer the popups would show behind xdg clients

sort #includes

don't return early if the first output commit fails

check failure of wlr_output_init_render

use detached output state in createmon()

see previous commit for motivation