[OG] Finish OG Image generation with updated middleware implementation

[dac09]

@cannikin and I have a plan!

• Add original file path (Relative path from project routes) to route manifest

• Create OG Image Vite plugin to build all *.{png,jpg}.jsx files to the dist folder.
  In vite plugin, map filepath to ogImg/AboutPage/AboutPage.mjs: this is the og image component

• In the middleware, we match a route to the request (after ignoring the extension).
  Then we know the original file path, so we can lookup the og image component (and if it doesn't exist, 404)

• React hooks to easily get the url

Decision points:
☐ Should playwright be a dependency? Or will it eventually be part of the setup command (or instructions)
☐ Where does ogmiddleware live?

• @redwoodjs/og-gen?
  ☐ @redwoodjs/og-gen/middleware
  ☐ @redwoodjs/og-gen/hooks
  ☐ @redwoodjs/og-gen/plugin

[cannikin]

Completed by #10469