chore: update favicon and manifest assets

Bogdan Tsechoevrequested to merge
fix/update-favicon into master

Updates favicon handling and adds web app manifest assets.

This improves the website's appearance on different devices and enables PWA support by:

  • Adding multiple favicon formats for better compatibility.
  • Introducing web app manifest assets and icons for a better installation experience.
  • Injecting the necessary head tags to link the icons and manifest.
  • Should fix missed icon in google search

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