disabled dragging the project scene icon

HISTORY.md

@@ -10,6 +10,7 @@
 
 ### 2021-05-19
 * gui: disabled scene icon context menu for project scene
+* gui: disabled dragging the project scene icon
 
 ### 2021-05-18
 * gui: fixed exporting media only for a single scene

src/gui.js

@@ -10494,8 +10494,11 @@ SceneAlbumMorph.prototype.updateList = function () {
     };
     this.addBack(this.contents);
 
-    this.ide.scenes.asArray().forEach(scene => {
+    this.ide.scenes.asArray().forEach((scene, i) => {
         icon = new SceneIconMorph(scene);
+        if (i < 1) {
+            icon.isDraggable = false; // project scene cannot be rearranged
+        }
         icon.setPosition(new Point(x, y));
         this.addContents(icon);
         y = icon.bottom() + padding;