Actually move the original comment when merging ideas (and other UX improvements)

Hi there,

Some feedback about the new ideation module.

Now:

• when we want to merge idea B to idea A, all votes are being transferred but anyone can still vote on idea B
• both ideas get a new comment for me (moderator) with the link to one another. Why is that?
• it is not possible to add an actual comment from idea B to idea A.

Desired behavior when I merge idea B to idea A:

• all votes are being transferred
• a new comment from idea B is merged to the old thread (idea A) as it would normally do in any other category (remaining the original author)
• that new idea B post gets deleted just like it is happening in other categories. Idea B’s URL redirects to this comment in the idea A’s thread.