feat: (IntelliJ Plugin) Make use of Dart 3 class modifiers

[kputh]

Description

Dart 3 introduced new class modifiers, and the examples in the bloc naming conventions make use of the sealed and final class modifiers. The event and state classes generated by the bloc plugin for IntelliJ IDEA deviate from the official documentation by not using these new class modifiers.

Desired Solution

Offer the option to have the bloc plugin for IntelliJ IDEA generate events and states for Dart 3 using the sealed and final class modifiers.

[felangel]

Hi 👋
I’m working on this atm. I’m wrapping up the bricks (#3907) and will adjust the plugins next 👍

[8thgencore]

@felangel Good afternoon, when to wait for the update?

[felangel]

@8thgencore sorry for the delay! Planning to get to this in the next few days 👍

[donghyeon]

Apologies for my comment below. I've realized that the registration procedure differs in that it doesn't simply select one option above all sealed event classes. Therefore, please disregard my earlier comment as it was incorrect. Though, I think the exhaustive search can still find its application somewhere within this library.

Are there plans to modify the way handlers are registered in Bloc, particularly in light of the recent updates regarding exhaustive searches on sealed classes? Of course, the current on method works flawlessly. However, I believe integrating the registration process with the basic Dart 3 syntax might be more intuitive and familiar to newcomers to the Bloc library, compared to using a custom method.