fiber reconciler add support for application lifecycle events

[shial4]

Describe the bug

Missing triggers for below app lifecycle calls, breaks many modifier or views which depends on this functionality, internally inside TokamakCore as externally inside TokamakDOM and so on.

To Reproduce

Use fiber

static let _configuration: _AppConfiguration = .init(
    reconciler: .fiber(useDynamicLayout: true)
  )

Observe, a lot of functionality isn't working due to missing calls for

._onMount {
    print("🟡 _onMount")
}
._onUpdate {
    print("🟡 _onUpdate")
}
.onAppear {
    print("🟡 onAppear")
}
.onDisappear {
    print("🟡 onDisappear")
}

Expected behaviour

Calls work as expected.