Doc: Query and Filtering API (Alpha) feature now available for Python, Javascript, Go and .NET.

[paulyuk]

What content needs to be created or modified? We need to doc the How To for the 4 new languages supporting Query API. Python Javascript, go and .NET. This should go here. https://v1-6.docs.dapr.io/developing-applications/building-blocks/state-management/howto-state-query-api/

[msfussell]

Once the new quickstarts are in place, this can be added

[hhunter-ms]

closing until this is a thing