update fr.json with 5c89cad changes

- update french translation following new en.json https://github.com/popcorn-official/popcorn-app/commit/5c89cad52f6add803b9907e477ad82b311dd1de6

Made with @devnoname120
Update fr.json

- add corrections following https://github.com/popcorn-official/popcorn-app/commit/41994acfe0520fdd9e2183799d7386d888a3d329
Merge pull request #995 from MrVaykadji/patch-2

update fr.json with 5c89cad changes