AppFeature Reducer

AppReducer.swift

// Features/App/AppReducer.swift

extension AppFeature {
    static func reduce(_ old: State, with action: Action) -> State {
        return State(
            accountsState: AccountsFeature.reduce(old.accountsState, with: action),
            categoriesState: CategoriesFeature.reduce(old.categoriesState, with: action),
            keyboardState: KeyboardFeature.reduce(old.keyboardState, with: action),
            transactionState: TransactionFeature.reduce(old.transactionState, with: action)
        )
    }
}