[Identity] Dagger - Move injection to IdentityActivity

[ccen-stripe]

Summary

Move the injection from IdentityViewModel to IdentityActivity to preserve state in IdentityViewModel

This is a change required to make IdentityViewModelFactory preserving state after process kill by implementing AbstractSavedStateViewModelFactory, the reason is as follows:

• IdentityActivity needs to set a IdentityFragmentFactory in order to create different Fragments. This factory is created by dagger graph, and needs to be set in IdentityActivity before super.onCreate()

• However in order to make the IdentityViewModel to preserve state with AbstractSavedStateViewModelFactory, it could only be initialized after super.onCreate() - note this is not a requirement if it's just a regular ViewModelFactory

• Before the change, the IdentityViewModel(and IdentityFragmentFactory) are all created before super.onCreate() call

• After the change, IdentityFragmentFactory is created before the onCreate() call, the dependencies required IdentityViewModel is also created before the onCreate() call, they are all passed to the Factory. The actual creation of IdentityViewModel will be after onCreate() call.

Motivation

Preserve IdentityViewModelState

Testing

• Added tests
• Modified tests
• Manually verified

Screenshots

Before	After
before screenshot	after screenshot

Changelog