keyboard: bind switch to application toggle to gsettings

Status Job ID Name Coverage
  Build
passed #788391
build

00:01:41

 
  Test
passed #788392
test

00:00:58

 
  Manual
manual #788394
privileged allowed to fail manual
asan
manual #788393
allowed to fail manual
flatpak
manual #788397
allowed to fail manual
msan
manual #788395
allowed to fail manual
tsan
manual #788396
allowed to fail manual
ubsan
 
  Review
manual #788398
allowed to fail manual
review
manual #788399
allowed to fail manual
stop_review