grafana/public/app/features/explore/slate-plugins/runner.ts

export default function RunnerPlugin({ handler }: any) {
  return {
    onKeyDown(event: any) {
      // Handle enter
      if (handler && event.key === 'Enter' && !event.shiftKey) {
        // Submit on Enter
        event.preventDefault();
        handler(event);
        return true;
      }
      return undefined;
    },
  };
}