Add share note functionality

CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Changed "Name" to "Display Name" on the Edit Profile View.
 - Fixed side menu accessibility issues.
 - Updated the copy on the 3 dots note menu.
+- Added functionality to share notes link through the 3 dots note menu.
 
 ### Internal Changes
 - Included the npub in the properties list sent to analytics.

Nos/Views/Components/ActivityView.swift

@@ -5,11 +5,20 @@ struct ActivityViewController: UIViewControllerRepresentable {
 
     var activityItems: [Any]
     var applicationActivities: [UIActivity]?
+    /// The completion handler to execute after the activity view controller is dismissed.
+    var completion: (() -> Void)?
 
     func makeUIViewController(
         context: UIViewControllerRepresentableContext<ActivityViewController>
     ) -> UIActivityViewController {
-        UIActivityViewController(activityItems: activityItems, applicationActivities: applicationActivities)
+        let controller = UIActivityViewController(
+            activityItems: activityItems,
+            applicationActivities: applicationActivities
+        )
+        controller.completionWithItemsHandler = { _, _, _, _  in
+            completion?()
+        }
+        return controller
     }
 
     func updateUIViewController(

Nos/Views/Components/Button/NoteOptionsButton.swift

@@ -34,6 +34,7 @@ struct NoteOptionsButton: View {
                     copyMessageIdentifier()
                 }
                 Button(String(localized: .localizable.shareNote)) {
+                    showingShare = true
                     analytics.sharedNoteLink()
                 }
                 if !note.isStub {
@@ -82,6 +83,10 @@ struct NoteOptionsButton: View {
                 }
             }
             .sheet(isPresented: $showingShare) {
+                let url = note.webLink
+                ActivityViewController(activityItems: [url]) {
+                    showingShare = false
+                }
             }
         }
     }