Add an option to hide the AdGuard DNS queries from the query log/statistics

### Issue Details

AdGuard DNS accounts for 50% of my query log/statistics. As it's a requirement to query the users so much, it doesn't really offer much benefit when analysing statistics and query logs other than to add unnecessary information to the dashboard.

### Proposed solution

Add an option to hide the AdGuard DNS (xxxxxxxx.d.adguard-dns.com, etc) queries from the query log and statistics.

### Alternative solution

_No response_