✨ Drag and Drop "keep both files" prompt

Is your feature request related to a problem? Please describe.

When user drags and drops a file, user doesn't have option to rename dragged file in case there is a duplicate file of the same name

Describe the solution you'd like

In the alert telling the user that there exists duplicate files of the same name when dragging and dropping, add a button: keep both which will move the files and append copy to the end of the dragged files name ex: test.txt -> test copy.txt

Describe alternatives you've considered

n/a

Additional context

Prerequisites:

• https://github.com/CodeEditApp/CodeEdit/issues/1018
• https://github.com/CodeEditApp/CodeEdit/pull/1031