Add notification sync documentation

QuickDrop.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -33,8 +33,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/leif-ibsen/BigInt",
       "state" : {
-        "revision" : "8c6f93aa37504b7b1ba3954335b5548a19fbbd82",
-        "version" : "1.22.0"
+        "revision" : "c2f49bee454760e433bafff17bfdc5b96f75d7c8",
+        "version" : "1.23.0"
       }
     },
     {

QuickDrop/View/UserManual/TutorialView.swift

@@ -13,6 +13,7 @@ struct TutorialView: View {
     
     let tab: Tab
     let openPlus: () -> Void
+    let openAppAdvertisementView: () -> Void
     
     @State private var licenseWindow: NSWindow?
     @ObservedObject var iapManager = IAPManager.sharedInstance
@@ -87,6 +88,15 @@ struct TutorialView: View {
                 else if tab == .send {
                     EnableExtensionView()
                 }
+                else if tab == .notificationSync {
+                    Button {
+                        openAppAdvertisementView()
+                    } label: {
+                        Text("DownloadMobileApp".localized())
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .padding()
+                }
             }
         }
     }

QuickDrop/View/UserManual/WelcomeScreen.swift

@@ -79,12 +79,16 @@ struct WelcomeScreen: View {
                         SettingsView()
                     }
                     else {
-                        TutorialView(tab: selection, openPlus: openPlusScreen)
-                            .onAppear {
-                                if selection == .troubleshooting {
-                                    checkForNetworkIssues()
-                                }
+                        TutorialView(
+                            tab: selection,
+                            openPlus: openPlusScreen,
+                            openAppAdvertisementView: openAppAdvertisementView
+                        )
+                        .onAppear {
+                            if selection == .troubleshooting {
+                                checkForNetworkIssues()
                             }
+                        }
                     }
             }
         }
@@ -177,6 +181,7 @@ struct ExternalLinkLabel: View {
 enum Tab: CaseIterable {
     case receive
     case send
+    case notificationSync
     case troubleshooting
     case settings
     
@@ -186,6 +191,8 @@ enum Tab: CaseIterable {
             return "ReceiveFiles".localized()
         case .send:
             return "SendFiles".localized()
+        case .notificationSync:
+            return "NotificationSyncSidebar".localized()
         case .troubleshooting:
             return "TroubleshootingAndFaq".localized()
         case .settings:
@@ -206,6 +213,8 @@ enum Tab: CaseIterable {
             "UserManualDescription"
         case .send:
             "SendFilesDescription"
+        case .notificationSync:
+            "NotificationSyncManualDescription"
         default:
             ""
         }
@@ -217,6 +226,8 @@ enum Tab: CaseIterable {
             return "tray.and.arrow.down"
         case .send:
             return "tray.and.arrow.up"
+        case .notificationSync:
+            return "bell"
         case .troubleshooting:
             return "exclamationmark.triangle"
         case .settings: