Update README for 1.1.0 API changes

[anthony1810]

Summary

• Update installation version to 1.1.0
• Rewrite ViewModel/Store example to use new centralized dispatch pattern (receive(action:) async throws + nonisolatedReceive)
• Remove old isolatedReceive boilerplate from examples
• Update View example to use nonisolatedReceive for fire-and-forget and receive for awaited calls
• Fix ternimateLoadmoreView → terminateLoadMoreView in docs
• Update CancelBag section with DuplicatePolicy, AnyTask, auto-cleanup, and new init
• Mark nonIsolatedFinish() as deprecated in StreamProducer docs
• Add NonPresentableError, AnyTask to API reference
• Update ScreenActionStore, ActionLocker, CancelBag, DisplayableError, AsyncAction descriptions
• Update Environment CRUD callbacks to use nonisolatedReceive