Where are asp.net website project settings stored?

If we look at the settings page of a asp.net website project ( press alt+enter ) . It looks like this:

However, no where in the solution / website folder i can find out where these settings are stored ? there is no csproj file created for "website project" .

The reason I am asking this is because when I add the solution to github , and then clone on another machine, the references are lost and the project will not compile anymore. But if i copy the entire project folder to another computer, it compiles fine. So for sure, there are some settings file that are not added to git repo.

Does anyone have any idea where these settings are stored ?