message: Make emoji picker search placeholder localizable
diff: @@ -63,7 +63,7 @@ class Search extends React.PureComponent<IProps> {
  <input
  autoFocus
  type="text"
  - placeholder="Search"
  + placeholder={_t("Search")}
  value={this.props.query}
  onChange={ev => this.props.onChange(ev.target.value)}
  onKeyDown={this.onKeyDown}
  