Reviewed and completed the last missing strings to French

[Lesprit1350]

Hi there,

Regarding string translation to French of my current add-on version (9.0.2.12):

• I reviewed already translated strings and, if required, improved some acc. to my best technical understanding's background
• I achieved to translate all untranslated strings from above version

I also see some recent discussions from a couple of days ago and info that version 9.1 would be released soon with improved french.
I'll take a look a that version asap.

Hope this will help if still required,
br

fr.txt