[Gajim-translators] French translation update

Here are some little changes for the french translation. - Many keyboard shortcuts where in conflict (the same letter used on the same) - I added the "féminin" for the mood (like "content(e)", or "heureux(se)"), I would like to ask if it is necessary/useful. Do you think it is ? (the status are already like that (by the way, I fixed some), and I personnaly think that it's better with the "féminin") - I corrected the <i> => <b> for Privacy

and question :

#: ../src/common/helpers.py:305 msgid "?contact has status:Unknown" msgstr "Inconnu"

What the hell is that ? Is that normal ?