fix: crash when switching screens frequently (#820)

Sources/MessagingInApp/State/InAppMessageMiddleware.swift

@@ -7,20 +7,14 @@ import Foundation
 private func middleware(
     completion: @escaping MiddlewareCompletion
 ) -> InAppMessageMiddleware {
-    { _,
+    { dispatch,
         // swiftlint:disable:next closure_parameter_position
         getState in {
             // swiftlint:disable:next closure_parameter_position
             next in {
                 // swiftlint:disable:next closure_parameter_position
                 action in
                 let getStateOrDefault = { getState() ?? InAppMessageState() }
-                // Use dispatch from InAppMessageManager so that next action is queued in correct order and dispatched
-                // only after the current action is processed
-                // Ideally, we should have dispatch as a parameter with completion, but we'll keep it simple for now
-                let dispatch: DispatchFunction = { action in
-                    DIGraphShared.shared.inAppMessageManager.dispatch(action: action)
-                }
                 completion(dispatch, getStateOrDefault, next, action)
             }
         }