message: frontend: Remove placeholder style from Events dropdown filter
  Fixes
diff: @@ -171,6 +171,7 @@ export class EventsList extends React.Component {
  className="btn-group"
  items={categories}
  onChange={v => this.setState({category: v})}
  + selectedKey={this.state.category}
  title="All Categories"
  />
  </div>
  