How to remove the blank space in between post description and media display in flutterflow

When a user post a comment without a media, the blank space remains. Which create a big blank space in between the post and the empty container, like below. How do I use conditional visibility to hide this blank space if an image is not uploaded?

Here is the custom function code - Below - but how can I achieve this.

bool hasUploadedMedia(String? mediaPath) {
  /// MODIFY CODE ONLY BELOW THIS LINE

  // remove the space between the post discription and media display, if post don't have a media.
  return mediaPath != null && mediaPath.isNotEmpty;