Consolidate images and files

CHDataManagement/Views/Posts/PostDetailView.swift

@@ -95,6 +95,16 @@ struct PostDetailView: View {
     }
 }
 
+extension PostDetailView: MainContentView {
+
+    init(item: Post) {
+        self.item = item
+    }
+
+    static let itemDescription = "a post"
+}
+
+
 #Preview(traits: .fixedLayout(width: 270, height: 500)) {
     PostDetailView(post: .fullMock)
 }