Changes/addings on French translation.

[Calcipox]

• Automatically corrected some entries with typo.
• Added entries when not translated yet.
• Overall consolidation of all datas.

I've used a python script and a common.json file to automatically add all this changes. Of course I've manual read all of them to check for any error. Json structure should not be in danger, as I've used a python parser to dump the structure. (There are some cosmetic changes on the way arrays are written in the files due to python parser).

Some translations will need to be manually completed, but overall it's a big improvement.

[nthiebes]

Awesome! Thanks for all your work 🙌