Review french translation (personal greeting) #6009

Problem & Background / Context:

The current French translations need to be audited for tone and consistency. We want to move away from a formal, distant tone and instead use a personal address to create a more engaging and friendly user experience.

User Story:
As a French-speaking user,
I want to be addressed personally and directly on the landing page,
so that the platform feels approachable and the content resonates more effectively with me.

Acceptance Criteria:

• Personal Address Audit: All text elements (Headings, CTAs, Hero section, etc.) are reviewed to ensure a personal and direct tone (using Tutoiement / "Tu" instead of the formal "Vous")
• Consistency Check: The personal address is applied consistently across the entire ltool to avoid switching between formal and informal tones