Update French spelling dictionary (v5.0.2)

Change-Id: I2d1472b701f8a599539c565fc287758a9bee7664
Signed-off-by: Andras Timar <andras.timar@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/8108
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>