[FEAT] Add add new frame btn

src/views/EditorView.vue

@@ -329,12 +329,7 @@
               />
             </div>
             <div v-else-if="activeTab === 'draw'" class="h-full">
-              <draw-tab
-                :layers="layers"
-                :initial-frame="pixelEditorFrame"
-                @save-frame="handleSaveFrame"
-                @close="pixelEditorFrame = null"
-              />
+              <draw-tab :layers="layers" :initial-frame="pixelEditorFrame" @save-frame="handleSaveFrame" @close="pixelEditorFrame = null" />
             </div>
           </div>
         </div>
@@ -676,6 +671,8 @@
 
         if (frameIndex < layer.sprites.length) {
           layer.sprites[frameIndex] = sprite;
+        } else {
+          layer.sprites.push(sprite);
         }
       };
       img.src = url;