Pull request: 5035-netip-maps-clients

Updates #5035.

Squashed commit of the following:

commit c2d38fe75b8aa2f00b19892724984ed3bb843db5
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Oct 24 16:50:14 2022 +0300

    home: move clients to netip.Addr

internal/dnsforward/dnsforward.go

@@ -706,7 +706,5 @@ func (s *Server) IsBlockedClient(ip net.IP, clientID string) (blocked bool, rule
 		blocked = true
 	}
 
-	rule = aghalg.Coalesce(rule, clientID)
-
-	return blocked, rule
+	return blocked, aghalg.Coalesce(rule, clientID)
 }