Summary: Added "Performance Environnementale" service.

Why It Matters: This shows a new focus on environmental services.

What Changed:

• Removed "Fiscalité" from the main service menu.
• Added "Performance Environnementale" to the main service menu.
• Updated the description for "Fiscalité" to include innovation.
• Removed "Digitaliser l'Innovation" and "Digitaliser la gestion des Ressources humaines" from "Nos offres digitales".
• Added new content about "Cabinet international de conseil en innovation et en performance".
• Added new content about "WeImpact 2025" event.
• Added new content about joining the company.