Fixed typo: forgeround --> foreground
in 19 files.

Change-Id: Idb4c9ccd98a949a2574cdbd5b44f91509b9856a9
Reviewed-on: https://gerrit.libreoffice.org/36154Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Gautam Prajapati <gautamprajapati06@gmail.com>
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>