Add margin between markdown editor and `Issue type` on issue/edit page
Follow-up from !120389 (comment 1386048313).
There is an UX issue on the issue/edit form where the markdown editor and the Issue type
dropdown stick to each other and due to the added border even overlap. Can we add some margin there to polish this part of the UI? This can be handled in a follow-up but I want to make sure we create an issue for it so it's fixed.