Fix many punctuation or typing mistakes in french translation files.
I hope this kind a of edit can help.
Thanks for your PR. Unfortunately we can't merge PRs for translation files. Our translations are managed using transifex. Please get an account there in order to help us to improve the translations.
@Findus23 I will not reproduce all these update in GUI, I use sed and grep to do it. It take some time for nothing, meh.
@JackNUMBER In Transifex, you can download the translation file, then do your changes using grep and sed, then upload the file containing your fixes :
@JackNUMBER thanks, I will sync the update to github the coming days...