Website `favicon` checker report and generator: Found 4 errors and 3 warnings

Check the site here:

https://realfavicongenerator.net/favicon-checker

See the favicon support here:

https://caniuse.com/?search=favicon

Homepage has a lot more info:

https://realfavicongenerator.net

More info:

https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Manifest

https://web.dev/learn/pwa/web-app-manifest

Image of report attached here:

Start by checking the favicon-checker report and the linked favicon and web app manifest references, then confirm how this relates to the Lucene.NET repository. The issue does not name a Lucene.NET file, test, entry point, or specific change, so the completion criteria must be clarified before implementation.

Written by the indexing model from the issue text.