adapt code to the changes in the ui package of podman-desktop

[benoitf]

Is your enhancement related to a problem? Please describe

see #1228
it seems some changes in the library is producing some regression (unit tests)

Describe the solution you'd like

fix the code or then fix in upstream to be able to switch to a more recent version of the ui package

Describe alternatives you've considered

No response

Additional context

No response

[deboer-tim]

The tests are confirming that when you're at a given route the correct item (and only that) is selected in the navigation. SettingsNavItem added an extra div in the hierarchy so it's checking the wrong one.

Ideally SettingsNavItem would have aria labels, and the test would look at more of the hierarchy - but it was only a minute to find the problem, fix the test, and add the missing test for examples. If it happens again we can do something better but for now I'll add the simple commit to unblock this.