Enter key on caption doesn't go to the next block

[codeKonami]

When I upload an image and edit the caption, I'd naturally use the enter key to go the next block but it doesn't do anything.

Thanks for this great editor!

[svnm]

This would be a good feature, I think we would just need to detect the keyDown on the Input component, and then set the selection. Will just have to look at the logic for setting selection at a new block.

  onKeyDown (event) {
    if (event.key === 'Enter') {
      event.preventDefault()
     /* now set to a new block */
    }
  }