feat: add global dataLayer and event tracking functionality

[ErwanDecoster]

No description provided.

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
documentation	Ready	Preview	Comment	Oct 1, 2025 7:44am

[Copilot]

Pull Request Overview

This PR adds global dataLayer and event tracking functionality to support analytics integration. The changes introduce window interface declarations for dataLayer and Axeptio settings, along with a click event listener that tracks specific user interactions.

• Adds global window interface declarations for dataLayer and axeptioSettings
• Implements automatic event tracking for wallet connections, data protection, access grants, and voucher claims
• Sets up click-based analytics tracking using data attributes

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