Update lang.js

### Description What does this PR add or fix? Add the details here Add better translations for fr-CA and fr-FR ### Resolved / Related Issues Issues resolved or addressed by this PR. - Closes #ISSUE_NUMBER - Addresses #ISSUE_NUMBER ### Type of Change - [ ] Feature - [x] Bug Fix - [ ] Documentation - [ ] Localization ### Validation Checklist Check all that applies - [x] Built and ran the app - [x] Tested my changes _(to make sure your changes don't break something, make sure to test the code)_ - [ ] Formatted code using Prettier/ESLint - [ ] Added comments/documentation in relevant places _([JSDocs](https://jsdoc.app/) for function/class body and `//` comments for other parts)_ ### Screenshots (optional) Add screenshots here.