(It was on Footprint Defaults, which didn't make
any sense. Probably just ended up there because
there was similar code there.)
Also fixed a bug with accepting the dialog with
a grid cell editor open.
Also fixed a bug where the number of copper layers
would get set back to 2.
Also fixed a bug where the layer names weren't
getting updated in the Appearances tab.
Remove some useless spacers, and do not force some widgets to have a to
large size (by removing empty areas).
Work in progress: one panel is still too big.
Previous the cross-probing options were mixed between sending and
receiving cross-probe events. This clarifies so that all of the pcbnew
cross-probe options deal with whether the cross-probe is seen in pcbnew
and all of the eeschema options deal with seeing the event in eeschema.
Also updates the wording in the options panels to be the same where
possible and adds tooltips
Fixes https://gitlab.com/kicad/code/kicad/issues/11454
