async function applyProxyEveryMonitor(proxyID, userID) {
    // Find all monitors with id and proxy id
    const monitors = await R.getAll("SELECT id, proxy_id FROM monitor WHERE user_id = ?", [ userID ]);

    // Update proxy id not match with given proxy id
    for (const monitor of monitors) {
        if (monitor.proxy_id !== proxyID) {
            await R.exec("UPDATE monitor SET proxy_id = ? WHERE id = ?", [ proxyID, monitor.id ]);
        }
    }
}
Applies given proxy id to monitors
@param {number} proxyID ID of proxy to apply
@param {number} userID ID of proxy owner
@returns {Promise<void>}