Revert "Fix mistake"

This reverts commit e89b2981e7.

src/DesktopMagicPluginAPI/Inputs/Element.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace DesktopMagicPluginAPI.Inputs
+{
+    /// <summary>
+    /// The element base class
+    /// </summary>
+    public abstract class Element
+    {
+        /// <summary>
+        /// Occurs when the value has been changed
+        /// </summary>
+        public event Action OnValueChanged;
+
+        /// <summary>
+        /// Triggers the <see cref="OnValueChanged"/> event
+        /// </summary>
+        protected void ValueChanged()
+        {
+            OnValueChanged?.Invoke();
+        }
+    }
+}