Fix for "Sending 'self' risks causing data races" in Swift 6

SendingSelf.swift

// 1. Decorate the class itself with e.g. @MainActor
// 2. If that isn't possible, here is an example workaround:

deinit {
	nonisolated(unsafe) let obj = self
	MainActor.assumeIsolated {
		obj.dismiss(animated: false)
	}
}