My component doesn’t seem to be updated after successfully updating a signal.

I tried debugging it using console logs, but that only confirmed that the signal gets updated correctly. But for some reason my navbar component doesn’t get rerendered with the correct color.

Here is a stackblitz with the problem.

What I want is that the navbar items have different active colours. It should have a different underlined colour on the home page than on the about page when hovering it.