Not Home Page

I have a dynamic menu that highlights the current page. However, I use a dynamic include to make external pages for my website.

Basically, when you go to https://www.freshstreetmag.com, the home page button is highlighted, because it’s the home page. If you click on the next one, it stays highlighted. However, if you go to my dynamically included PHP page, https://freshstreetmag.com/?page=about, the home thing is still highlighted.

Here is the code for my nav bar:

[Code moderated as per the Forum Rules. Please use the pastebin]