make backgroundOverlay and overviewBackdrop disableable via modules config

modules/Modules.qml

@@ -79,6 +79,12 @@ QtObject {
     property var power: ({
             enable: true
         })
+    property var backgroundOverlay: ({
+            enable: true
+        })
+    property var overviewBackdrop: ({
+            enable: true
+        })
 
     property FileView _file: FileView {
         path: (Quickshell.env("XDG_CONFIG_HOME") || (Quickshell.env("HOME") + "/.config")) + "/nova-shell/modules.json"

nix/hm-module.nix

@@ -86,6 +86,8 @@ in
           "volume"
           "idleInhibitor"
           "power"
+          "backgroundOverlay"
+          "overviewBackdrop"
         ] (name: moduleOpt name { });
       in
       simpleModules

shell.qml

@@ -23,13 +23,19 @@ ShellRoot {
                 screen: scope.modelData
             }
 
-            BackgroundOverlay {
+            Loader {
+                active: Modules.backgroundOverlay.enable
+                sourceComponent: BackgroundOverlay {
                     screen: scope.modelData
                 }
+            }
 
-            OverviewBackdrop {
+            Loader {
+                active: Modules.overviewBackdrop.enable
+                sourceComponent: OverviewBackdrop {
                     screen: scope.modelData
                 }
+            }
 
             ScreenCorners {
                 screen: scope.modelData