Make sure that the keyboard works fully

Related epic: https://source.puri.sm/Librem5/use-cases/issues/22

• the keyboard pops up/out when a text field is (de)selected

• preedit text is shown

• We currently flood the log with Text input commit received without focus

• Crash on intel

• Phoc coredump (while sitting in gnome-contacts)

• segfault when launching donf-editor

• phoc coredump adding a contact to GNOME Contacts

• crash on emacs startup

• Crash related to subsurfaces