message: Monitoring dashboards: Translate "All" options to `.+` regex
  Instead of constructing a regular expression that matches all known
  values for the label, simply use `.+`. This fixes a bug where some
  values were missed and also matches Grafana's behavior.
diff: @@ -95,11 +95,7 @@ const evaluateTemplate = (
  return false;
  }
  const replacement =
  - v.value === MONITORING_DASHBOARDS_VARIABLE_ALL_OPTION_KEY
  - ? // Build a regex that tests for all options. After escaping regex characters, we also
  - // escape '\' characters so that they are seen as literal '\'s by the PromQL parser.
  - `(${v.options.map((s) => _.escapeRegExp(s).replace(/\\/g, '\\\\')).join('|')})`
  - : v.value || '';
  + v.value === MONITORING_DASHBOARDS_VARIABLE_ALL_OPTION_KEY ? '.+' : v.value || '';
  result = result.replace(re, replacement);
  }
  });
  