Fix alt+drag duplication order

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

packages/excalidraw/components/App.tsx

@@ -8447,6 +8447,7 @@ class App extends React.Component<AppProps, AppState> {
                     y: origEl.y,
                   };
                 },
+                reverseOrder: true,
               });
             clonedElements.forEach((element) => {
               pointerDownState.originalElements.set(element.id, element);

packages/excalidraw/element/duplicate.ts

@@ -105,6 +105,7 @@ export const duplicateElements = (
     };
     overrides?: (element: ExcalidrawElement) => Partial<ExcalidrawElement>;
     randomizeSeed?: boolean;
+    reverseOrder?: boolean;
   },
 ) => {
   // Ids of elements that have already been processed so we don't push them
@@ -192,7 +193,11 @@ export const duplicateElements = (
       return;
     }
 
-    elementsWithClones.splice(index + 1, 0, ...castArray(elements));
+    elementsWithClones.splice(
+      index + (opts?.reverseOrder ? 0 : +1),
+      0,
+      ...castArray(elements),
+    );
   };
 
   const frameIdsToDuplicate = new Set(