feature: flutter_local_notifications for mobile local notifications

[MasterA5]

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Describe the requested feature

I was thinking that adding a local notification system for Flet would be very helpful into the main branch

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[Muddassir-Farooq-official]

https://github.com/Bbalduzz/flet_notifications

[Creeper19472]

https://github.com/Bbalduzz/flet_notifications

@Muddassir-Farooq-official It appears to be a creation from the Flet 0.28.3 era. For version 0.80.0, it might be more appropriate to integrate it directly into the main branch.