Add the French keyboard layout

On phones, it's the US one with:
- Q and A flipped,
- W and Z flipped,
- M moved at the end of the second row,
- ' replacing M at the end of the 3rd row.
4 jobs for fr-layout in 15 minutes and 26 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #209302
librem5
build_deb

00:09:46

passed #209301
librem5
build_meson

00:08:05

 
  Test
passed #209304
librem5
test

00:03:22

passed #209303
librem5
test_lintian

00:02:33