A option to select between "Block" and "Modify" for NRDs

### Issue Details

For all the domains which are blocked by NRD filter, dashboard shows it as modified and on browser it shows ADG blocking page.

### Proposed solution

There should be option if person just wants a simple "Blocked" that is "0.0.0.0" response to such NRDs instead of ADG blocking page.

I would even say they should be the default behavior and should respond to / change based on "Respond to blocked domains" selection for that server.

### Alternative solution

_No response_