support angular signals inside cypress/angular

[AtofStryker]

What would you like?

I would like to have angular signals supported by default inside cypress/angular without needing a separate package such as cypress/angular-signals

Why is this needed?

angular signals have been supported since Angular 17.2 fully (input and model signals). This allows us to remove versions of angular 16 for official test harness support and roll forward to newer versions of angular (17 and 18). Users on angular 16 and under can still install older versions of the test hardness from @cypress/angular

Other

related to #29582