Meta - Fixed a whole bunch of warnings

src/Artemis.Core/Models/Profile/Folder.cs

@@ -256,6 +256,18 @@ namespace Artemis.Core
         /// </summary>
         public event EventHandler? RenderPropertiesUpdated;
 
+        /// <inheritdoc />
+        public override void Activate()
+        {
+            throw new NotImplementedException();
+        }
+
+        /// <inheritdoc />
+        public override void Deactivate()
+        {
+            throw new NotImplementedException();
+        }
+
         /// <inheritdoc />
         protected override void Dispose(bool disposing)
         {