Fix most warnings

[Jimmy-Prime]

This pr fix all but two warnings before migrating to TCA 1.0.

Most of the warnings are

• fireAndForget is deprecated
• Conformance of 'EffectPublisher<Action, Failure>' to 'Publisher' is deprecated

The technique used here is turn methods in client to simple method or async method if it uses promise

For example:

• Turn (Input) -> Effect<Never> to (Input) -> Void or (Input) async -> Void
• Turn (Input) -> Effect<Output> to (Input) -> Output or (Input) async -> Output

Then make corresponding changes in reducers

---

The warnings left are

EhProfileRequest(action: .create, name: "EhPanda").effect.fireAndForget()

// and

extension Request {
    var effect: Effect<Result<Response, AppError>> {
        publisher.receive(on: DispatchQueue.main).catchToEffect()
    }

[tatsuz0u]

Thank you for your PR again!
We really need some contributions these days.
(haven't release a update for six months XD)

[tatsuz0u]

LGTM!