hide pw after navigating away from itemlist

lockbox-ios/Presenter/ItemDetailPresenter.swift

@@ -144,6 +144,10 @@ class ItemDetailPresenter {
             .disposed(by: self.disposeBag)
     }
 
+    func onViewDisappear() {
+        self.dispatcher.dispatch(action: ItemDetailDisplayAction.togglePassword(displayed: false))
+    }
+
     func dndStarted(value: String?) {
         self.itemDetailStore.itemDetailId
             .take(1)

lockbox-ios/View/ItemDetailView.swift

@@ -80,6 +80,11 @@ class ItemDetailView: UIViewController {
         self.setupDelegate()
         self.presenter?.onViewReady()
     }
+
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        self.presenter?.onViewDisappear()
+    }
 }
 
 extension ItemDetailView: ItemDetailViewProtocol {

lockbox-iosTests/ItemDetailPresenterSpec.swift

@@ -507,6 +507,17 @@ class ItemDetailPresenterSpec: QuickSpec {
                 }
             }
 
+            describe(".onViewDisappear") {
+                beforeEach {
+                    self.subject.onViewDisappear()
+                }
+
+                it("toggles the password to hidden") {
+                    let action = self.dispatcher.dispatchActionArgument.last as! ItemDetailDisplayAction
+                    expect(action).to(equal(.togglePassword(displayed: false)))
+                }
+            }
+
             describe(".onViewReady for view with sidebar") {
                 beforeEach {
                     self.view.itemDetailObserver = self.scheduler.createObserver([ItemDetailSectionModel].self)