refactor: Change CustomActivate and Initialize methods to protected access in multiple classes for better inheritance control

src/PepperDash.Essentials.Devices.Common/Displays/ScreenLiftController.cs

@@ -182,7 +182,7 @@ namespace PepperDash.Essentials.Devices.Common.Shades
         /// CustomActivate method
         /// </summary>
         /// <inheritdoc />
-        public override bool CustomActivate()
+        protected override bool CustomActivate()
         {
             //Create ISwitchedOutput objects based on props
             switch (Mode)

src/PepperDash.Essentials.Devices.Common/Shades/RelayControlledShade.cs

@@ -45,7 +45,7 @@ public class RelayControlledShade : ShadeBase, IShadesOpenCloseStop
     }
 
     /// <inheritdoc />
-    public override bool CustomActivate()
+    protected override bool CustomActivate()
     {
         //Create ISwitchedOutput objects based on props
         OpenRelay = GetSwitchedOutputFromDevice(Config.Relays.Open);

src/PepperDash.Essentials.Devices.Common/Shades/ShadeController.cs

@@ -34,7 +34,7 @@ public class ShadeController : EssentialsDevice, IShades
     }
 
     /// <inheritdoc />
-    public override bool CustomActivate()
+    protected override bool CustomActivate()
     {
         foreach (var shadeConfig in Config.Shades)
         {