Fallback onto global .gitconfig if no user name/email specified

[bilogic]

Summary of the new feature/enhancement

I have a multiroot (read: multi git repo) project and set the user name and email in my ~/.gitconfig, but I'm still getting this error You have selected profile UUU, but the repo RRR is not using user details from this profile. Do you want to apply the user dertails from profile UUU?

Proposed technical implementation details (optional)

The "current" user should be assess based on git config -l, thus, when running in a repo that does not have a user name/email configured, the global user should be used instead. And if it matches, this extension should not report the error

[onlyutkarsh]

The way I am thinking of implementing this is when the user first opens a repo, if the repo does not have user config details, I will fall back to see if global .gitconfig has user details defined (as you explained). If yes, I will create a profile with those details in the settings (if no other profiles have those details) and select it in the status bar (in a warning state). The reason to add it as a separate "Global" profile is to list it in a picker, allowing the user to pick it for other repositories.