Support for adding existing repositories

[lim-kim930]

Suggested new feature or improvement

When adding a repository, I hope that I can add the existing git repository folder instead of having to clone it again.

Scenario

In the tab bar above the pop-up window for adding a repository, add a new option, such as ‘Add existing’, just like Github Desktop:

Additional details

No response

[krschau]

Duplicate of #702

[microsoft-github-policy-service]

We've identified this as a duplicate of another one that already exists. This specific instance is being closed in favor of tracking the concern over on the the linked issue. Please add your 👍 to the other issue to raise its priority. Thanks for your report!