Allow customizing app scope

[n1ckoates]

Problem Description

I'm wanting to have separate PWAs for Google Docs, Slides, and Sheets. They're all hosted on subpaths of docs.google.com though, and thus have the same scope.

Proposed Solution

Allow customizing the scope of an app via regex or some other method. For instance, I'd want to set Google Docs' scope to just docs.google.com/document and Slides' scope to docs.google.com/presentation.

Additional Information

I'm not sure if this is already possible with some other method in the extension, apologies if so.