Merge branch 'patch/focusnthclient' into v0.6-a/patched-base

Focus nth client

Merge branch 'patches/bottomstack' into v0.6-a/patched-base

Merge branch 'patch/namedscratchpads' into v0.6-a/patched-base

Merge branch 'patch/ipc' into v0.6-a/patched-base

Merge branch 'patch/swallow' into v0.6-a/patched-base

Merge branch 'patch/movestack' into v0.6-a/patched-base

Merge branch 'patch/centeredmaster' into v0.6-a/patched-base

feat: access nth monitor

add bstack and bstackhoriz layouts

implement centeredmaster layout

inspiration: https://github.com/djpohly/dwl/wiki/centeredmaster

implement dwl-ipc-unstable-v2
https://codeberg.org/dwl/dwl-patches/wiki/ipc

Fix rule examples; minimize newbie surprises

Make example rules be actual EXAMPLES.
Now newcomers should not have to ask, "When I start firefox, nothing
happens. What is going on?"

Also clarified a minor typo and a consistency in spacing.

add examples

add focusortogglescratch function

apply main...loumray:namedscratchpads.patch

apply NikitaIvanovV movestack patch

source: https://github.com/djpohly/dwl/wiki/movestack

swallow patch with x support

fixed to work after commit 985417b

turn on -Wfloat-conversion

restore and respect rootcolor