wallpaper selector: allow making system picker the default

.config/quickshell/ii/modules/common/Config.qml

@@ -338,7 +338,11 @@ Singleton {
                     property int longBreak: 900
                 }
             }
-
+            
+            property JsonObject wallpaperSelector: JsonObject {
+                property bool useSystemFileDialog: false
+            }
+            
             property JsonObject windows: JsonObject {
                 property bool showTitlebar: true // Client-side decoration for shell apps
                 property bool centerTitle: true

.config/quickshell/ii/modules/wallpaperSelector/WallpaperSelector.qml

@@ -57,19 +57,25 @@ Scope {
         }
     }
 
+    function toggleWallpaperSelector() {
+        if (Config.options.wallpaperSelector.useSystemFileDialog) {
+            Wallpapers.openFallbackPicker(Appearance.m3colors.darkmode);
+            return;
+        }
+        GlobalStates.wallpaperSelectorOpen = !GlobalStates.wallpaperSelectorOpen
+    }
+
     IpcHandler {
         target: "wallpaperSelector"
 
         function toggle(): void {
-            GlobalStates.wallpaperSelectorOpen = !GlobalStates.wallpaperSelectorOpen
+            root.toggleWallpaperSelector();
         }
     }
 
     GlobalShortcut {
         name: "wallpaperSelectorToggle"
         description: "Toggle wallpaper selector"
-        onPressed: {
+        onPressed: root.toggleWallpaperSelector();
-            GlobalStates.wallpaperSelectorOpen = !GlobalStates.wallpaperSelectorOpen;
-        }
     }
 }

.config/quickshell/ii/modules/wallpaperSelector/WallpaperSelectorContent.qml

@@ -316,12 +316,17 @@ MouseArea {
                                 Wallpapers.openFallbackPicker(root.useDarkMode);
                                 GlobalStates.wallpaperSelectorOpen = false;
                             }
+                            altAction: () => {
+                                Wallpapers.openFallbackPicker(root.useDarkMode);
+                                GlobalStates.wallpaperSelectorOpen = false;
+                                Config.options.wallpaperSelector.useSystemFileDialog = true
+                            }
                             contentItem: MaterialSymbol {
                                 text: "open_in_new"
                                 iconSize: Appearance.font.pixelSize.larger
                             }
                             StyledToolTip {
-                                content: Translation.tr("Use the system file picker instead")
+                                content: Translation.tr("Use the system file picker instead\nRight-click to make this the default behavior")
                             }
                         }