Consider replacing WebViewLocalServer with WebViewAssetLoader

I'm an engineer on the Android WebView team. It recently came to my attention that you're using WebViewLocalServer (probably forked from https://github.com/google/webview-local-server).

Instead of forking this class, we strongly recommend using https://developer.android.com/reference/androidx/webkit/WebViewAssetLoader, which will do most of the heavy lifting for you, and will be maintained as part of our AndroidX library. If this isn't a suitable replacement, we welcome any feedback on our [bug tracker](https://issuetracker.google.com/issues/new?component=460423&template=1157790).

CC @HazemSamir (the author of WebViewAssetLoader).