CLI does not handle deleted files from App_Resources/Android/src

If a user adds some Java/Kotlin files in the App_Resources/Android/src folder and runs a build, the files are copied into the platforms/android/app/src folder.
If the user, however, deletes some file in App_Resources/Android/src and triggers a second build, this does not change the state of the platforms/android/app/src directory.

Issue seems to be due to this logic: https://github.com/NativeScript/nativescript-cli/blob/master/lib/services/android-project-service.ts#L294

The whole implementation of the prepareAppResources method could probably be improved with setting an additional value provided to srcDir in the build.gradle

sourceSets {
    main {
        java {
            srcDir 'src/src'
        }
    }
}

As for the libs folder, it's probably a good idea to attach it as an implementation filetree(<libs_path>) in the dependencies block in the build.gradle

lib/services/android-project-service.ts の prepareAppResources から開始し、関連する build.gradle の sourceSets と dependencies の処理を確認します。ビルドを実行し、App_Resources/Android/src 配下のファイルを削除してから再度ビルドして、問題を再現します。完了条件は、生成された platforms/android/app/src の状態に削除と追加の両方が反映されることです。