feat: add Umami analytics

[kamikazechaser]

Summary

• Removed Vercel analytics
• Added Umami (https://umami.is/)

Umami:

• is privacy friendly
• is ad-blocker/tracker friendly
• loads only after some hydration

Issues

• Closes #92

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
sarafu-network	✅ Ready (Inspect)	Visit Preview	Feb 15, 2024 10:10am

[socket-security[bot]]

Removed dependencies detected. Learn more about Socket for GitHub ↗︎

🚮 Removed packages: npm/@vercel/analytics@1.1.2

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