l10n: fr translation for v2.0.0rc0 (2228t)

Signed-off-by: NJean-Noel Avila <jn.avila@free.fr>
Signed-off-by: NMatthieu Baerts <matttbe@gmail.com>
Signed-off-by: NXavier Mehrenberger <xavier.mehrenberger@gmail.com>