Style of import project buttons were fixed in the new project page.

What does this MR do?

I have fixed style of import project buttons in the new project page.

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

I don't think so.

Why was this MR needed?

Because the buttons area hasn't looked well. Before this, it was scattered.

What are the relevant issue numbers?

Fixes #19467 (closed)

Screenshots (if relevant)

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 style guides
• Branch has no merge conflicts with master (if you do - rebase it please)
• Squashed related commits together