Improve 'prevent-xhr' — support redirect resources as response body

### Expected and Actual Behaviors


They checks that `google-adsense` or `googlesyndication` exists in `XMLHttpRequest.prototype.responseText` via `jQuery.ajax.done`.
It can be resolved if a filter maintainer can use redirection resources in `prevent-xhr` scriptlet.

Add a parameter to `prevent-xhr` that accepts a redirect resource name (e.g., `googlesyndication-adsbygoogle`) to be returned as the XHR `response`/`responseText` body instead of an empty string. This is needed when pages check the XHR response content for specific strings (e.g., `aagag.com` checks for `google-adsense`/`googlesyndication` in `responseText` via `jQuery.ajax.done`) — currently an empty response causes the site to detect blocking and break.

### Environment
- Operating System: Ubuntu 23.04
- Web Browser: Mozilla Firefox Developer Edition 117.0b5
- AdGuard product: AdGuard Browser extension 4.1.57

### Additional Information

- https://piquark6046.github.io/testpage/XMLResponse-aagag/20230810/
- https://github.com/AdguardTeam/AdguardFilters/issues/158625
- https://github.com/List-KR/List-KR/issues/769