[Unfork] Improve UI that links to GitHub docs on restoring deleted projects

[lyqht]

Description

As Unfork doesn't provide a backup script (#9 is not done yet), users may not know how to restore their deleted projects. Hence, we should add a UI that gives users information on how to restore their projects.

Suggested solution

• UI should be a button with "?" symbol, and a text like "Restoring deleted repos".
• Upon click, this button redirects user in a new tab to https://docs.github.com/en/repositories/creating-and-managing-repositories/restoring-a-deleted-repository
• Placement of this UI should be at the history page, file: /Unfork/history.tsx
• Alternative proposals are welcome as long they look nice, accessible and make sense

[i-m-alok]

Please assign it to me.

[lyqht]

You're on a roll! Assigned it to you.

[lyqht]

Now, there's a UI (refer to latest PR comment), however I think there's still much room for improvement to make it look nice — so this issue is still available but just to improve it.

Please propose in the form of a mockup before being asked to work on this issue.