tdf#139906 Show warning message when data source is not avaible.
CurrentDatabaseDataSource config item holds a database name for a
specific file. When document has CurrentDatabaseDataSource config
item but LibreOffice doesn't have in registered databases we should
notify the user at load time and put a button to fix the problem.
Change-Id: Ia0a6fd53985fc2fb82ce37d3962b3f479c20a647
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113296
Tested-by: Jenkins
Reviewed-by: Gülşah Köse <gulsah.kose@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113701
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Jan Holesovsky <kendy@collabora.com>