Sync flatpak-manifest.in with Flathub
...including
<https://github.com/flathub/org.libreoffice.LibreOffice/commit/
36da4a90d90eef38f5d02beed427a6dd112b93bb>
"Merge pull request #178 from JamesBelchamber/file-picker-bookmarks: Adding
access to gtk-3.0 config"
Change-Id: Ie491cfa4481251ac55b8ab38a5068272165c12de
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/129727
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
(cherry picked from commit
12697a559b89539b03779030f94079a27cb1a12f)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/129751
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>