Modal mergeinfo shorten clipboard

What does this MR do?

It shortens the modal command merge info elements.

Are there points in the code the reviewer needs to double check?

I used the .dark class.. is that correct usage? Made no issue as this is a minor upgrade to UI

Why was this MR needed?

Clipboard buttons could obscure information in the merge info modal, this way its clean.

Screenshots (if relevant)

From:

To:

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

None, its a quick fix