Resolves: fdo#73851 promote labels to headings

Change-Id: Ia12b32abfad987bfaecc54005a73ccbeb158f61b
(cherry picked from commit c923b15cd99672e5b93d1ab6314c66caa417c738)

Related: fdo#73851 select driver list widget to shrink/expand

Change-Id: I3f2013ab8e0b188e74da99d2f1ff8bc842f60f50
(cherry picked from commit c8cd1c61ee3f491e170086f740ffde65a8a63f83)
Reviewed-on: https://gerrit.libreoffice.org/8397
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>
Tested-by: Kohei Yoshida <libreoffice@kohei.us>