d2558234cf added escaping of URLs while sanitizing. However, `sanitize_url` may not always receive an actual URL.
Eg: When using `yt-dlp "search query" --default-search ytsearch`, `search query` gets escaped to `search%20query` before being prefixed with `ytsearch:` which is not the intended behavior. So the escaping is moved to `sanitized_Request` instead.