Update DevHome NavigationService and PageService so the same can be used in DevDiagnostics and remove the duplicates in DevDiagnostics

[andreww-msft]

Suggested new feature or improvement

Right now, PI has its own versions of NavigationService, PageService, AppInfoService, because the ones in DevHome.Common are not generically useful. Consider making the common ones generically useful.

Scenario

Avoids duplication of code, redundant components, establishes a better pattern for utilities going forward.

Additional details

No response