message: Monitoring: Use "=~" instead of "=" for regex in Silence name
  This is only for the fallback case where we have no alertname matcher to
  use for the Silence name.
  Matches the format we are using for Silence matcher Labels.
diff: @@ -939,7 +939,7 @@ export class MonitoringUI extends React.Component<null, null> {
  s.name = _.get(_.find(s.matchers, {name: 'alertname'}), 'value');
  if (!s.name) {
  // No alertname, so fall back to displaying the other matchers
  - s.name = s.matchers.map(m => `${m.name}=${m.value}`).join(', ');
  + s.name = s.matchers.map(m => `${m.name}${m.isRegex ? '=~' : '='}${m.value}`).join(', ');
  }
  });
  return data;
  