`internal` and attributes allowed on items in local scopes

[sezna]

Describe the bug

The following code snippet compiles without errors, although the internal and @Config have no meaning on the inner callable:

namespace MyQuantumProgram {

    @EntryPoint()
    operation Main() : Result[] {

        @Config(Base) 
        internal operation Foo(): Unit {

        }

        return [];
    }
}

Maybe we could produce a lint warning, or disallow in these cases?

[sezna]

Closing as internal does nothing anymore (the default is internal), so this is inconsequential.