mouse: Reinstate keyboard navigation in the panel

Fixes #246
11 jobs for mouse-accessibility in 6 minutes and 58 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #260281
build

00:02:47

 
  Test
passed #260283
asan

00:04:10

passed #260282
test

00:01:57

 
  Manual
manual #260288
allowed to fail manual
armv8
manual #260284
allowed to fail manual
flatpak
manual #260287
allowed to fail manual
msan
manual #260289
allowed to fail manual
ppc64le
manual #260285
allowed to fail manual
tsan
manual #260286
allowed to fail manual
ubsan
 
  Review
manual #260290
allowed to fail manual
review
manual #260291
allowed to fail manual
stop_review