Handle being revoked when Blokada is opened
Blokada currently stops any active VPN when it is opened (https://github.com/blokadaorg/blokada/issues/588). Users might not notice Nebulo (or any other VPN for that matter) stopping, which exposes their queries.
Nebulo should either notify the user that it was stopped (in a highly visible manner) or refuse to be stopped by starting itself after being revoked.