Fix meta pwa

[Brian-Pob]

Multiple improvements

• clean up meta tags in index.html
  • removing repeated tags
  • adding correct tag attributes
  • property= instead of name= for some tags as per OG protocol
• implement PWA functionality
  • I noticed there was an attempt to include PWA functionality before.
  • uses vite-plugin-pwa as it was already part of the dependencies
• added images for PWA functionality
  • used the existing icons located in public/img/icons
  • does not explicitly set PWA options for Android or iOS yet
  • screenshot images were taken using Arc browser's screenshot tool
  • I can use different images if requested

[Brian-Pob]

Tried deploying my fork onto CF pages and Vercel and couldn't get either to work. :(
It does work when I run pnpm dev but running build reveals some errors that I don't know how to fix.

This is the error that pops up whenever build is executed

Cannot use 'in' operator to search for 'children' in undefined
file: .../solid-site-fix-meta/src/pages/Articles/state-of-solid-december-2021.mdx

Edit: Fixed this in 86b3d51

[Brian-Pob]

CFP Preview link https://4748970c.solid-site-fix-meta.pages.dev/