Allow for users to create/assert on input() signals

[AtofStryker]

What would you like?

Allow for users to assert on input() signals within the @cypress/angular-signals test harness.

Why is this needed?

There isn't a great way to set input signals in a component due to how input signals are instantiated. They require an angular injection context, and since Cypress lives outside this context, it is difficult to instantiate. To work around this currentlly, we convert the input() signal value to a writable signal.

Other

No response