feat: add french (#1355)

## Description

Add initial French translations

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Added support for the French language, enhancing accessibility for
French-speaking users.
- Introduced localized French messages for various application
functionalities, improving user experience.
  
- **Bug Fixes**
- Minor formatting updates in French translation files to remove
extraneous newline characters.

- **Chores**
- Updated line references in French translation files to maintain
alignment with code changes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Lucas Smith <me@lucasjamessmith.me>
Co-authored-by: Crowdin Bot <support+bot@crowdin.com>
Co-authored-by: github-actions <github-actions@documenso.com>

packages/lib/translations/fr/common.po

@@ -8,7 +8,7 @@ msgstr ""
 "Language: fr\n"
 "Project-Id-Version: documenso-app\n"
 "Report-Msgid-Bugs-To: \n"
-"PO-Revision-Date: 2024-09-19 06:13\n"
+"PO-Revision-Date: 2024-09-19 09:18\n"
 "Last-Translator: \n"
 "Language-Team: French\n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
@@ -778,4 +778,3 @@ msgstr "Vous ne pouvez pas télécharger de documents pour le moment."
 #: packages/ui/primitives/document-dropzone.tsx:69
 msgid "You have reached your document limit."
 msgstr "Vous avez atteint votre limite de documents."
-