message: Query Browser: Insert example query in focused input & run immediately
  Fixes
  Set `query` when the example is inserted so it runs immediately. I think
  this is less confusing UX.
diff: @@ -623,9 +623,9 @@ const QueryBrowserWrapper_: React.FC<QueryBrowserWrapperProps> = ({patchQuery, q
  }, [queryStrings]);
  const insertExampleQuery = () => {
  - const index = 0;
  + const index = _.get(focusedQuery, 'index', 0);
  const text = 'sum(sort_desc(sum_over_time(ALERTS{alertstate="firing"}[24h]))) by (alertname)';
  - patchQuery(index, {isEnabled: true, query: '', text});
  + patchQuery(index, {isEnabled: true, query: text, text});
  };
  return queryStrings.join('') === ''
  