Does not build with Xcode 26.4 because of Swift Concurrency issues

[megastep]

Starting with the latest Xcode 26.4, the SwiftUI packages no longer build because of strict build requirements.

The solution is easy enough and is simply to add @MainActor to the PasswordRecoveryView and EmailLinkView structs.

I'll have a pull request shortly to address this.

[russellwheatley]

Hey @megastep - thank you for the head's up. I'll be sure to check your PR once I have installed the latest Xcode 🙏