feat: add screenCorners enable flag via Modules config

modules/Modules.qml

@@ -82,6 +82,9 @@ QtObject {
     property var privacy: ({
             enable: true
         })
+    property var screenCorners: ({
+            enable: true
+        })
     property var power: ({
             enable: true
         })

shell.qml

@@ -40,8 +40,11 @@ ShellRoot {
                 }
             }
 
-            ScreenCorners {
-                screen: scope.modelData
+            LazyLoader {
+                active: Modules.screenCorners.enable
+                ScreenCorners {
+                    screen: scope.modelData
+                }
             }
         }
     }