feat: drap and drop a angular app folder will set the Klingon UI accordingly (restore mode)

[sumitparakh]

Klingon should be able to restore based on dropped angular app project/folder.

[sumitparakh]

I am thinking of overlaying whole app screen, instead of just tab group element when dropping starts. Would that be ok?

[manekinekko]

Hey @sumitparakh thank you for starting this.

What you suggest is fine. Let's iterate over your PR.

[sumitparakh]

It's almost ready. I shall give PR after some local testing and updating few changes as per #56 .