Improve content saving, label editing

CHDataManagement/Model/Item/ChangeObservingItem.swift

@@ -0,0 +1,27 @@
+import Foundation
+import Combine
+
+class ChangeObservingItem: ObservableContentItem {
+    
+    unowned let content: Content
+    
+    /// A dummy property to force views to update when properties change
+    @Published
+    private var changeToggle = false
+    
+    var cancellables = Set<AnyCancellable>()
+    
+    init(content: Content) {
+        self.content = content
+        
+        observeChanges()
+    }
+    
+    // MARK: Change observation
+    
+    func didChange() {
+        DispatchQueue.main.async {
+            self.changeToggle.toggle()
+        }
+    }
+}

CHDataManagement/Model/Item/Item.swift

@@ -1,9 +1,7 @@
 import Foundation
 import Combine
 
-class Item: ObservableContentItem, Identifiable {
-
-    unowned let content: Content
+class Item: ChangeObservingItem, Identifiable {
 
     /// A dummy property to force views to update when properties change
     @Published
@@ -12,23 +10,13 @@ class Item: ObservableContentItem, Identifiable {
     @Published
     var id: String
 
-    var cancellables = Set<AnyCancellable>()
-
     init(content: Content, id: String) {
-        self.content = content
         self.id = id
+        super.init(content: content)
 
         observeChanges()
     }
 
-    // MARK: Change observation
-
-    func didChange() {
-        DispatchQueue.main.async {
-            self.changeToggle.toggle()
-        }
-    }
-
     // MARK: Paths
 
     func makeCleanAbsolutePath(_ path: String) -> String {