feat: Upload layout done.

src/components/Navbar.vue

@@ -37,6 +37,8 @@
             <UploadModal :visible="uploadModal" @closeModal="uploadModal = $event"></UploadModal>
           </div>
         </div>
+        <!-- Upload 無按鈕行為 -->
+        <div v-else-if="navViewName === 'UPLOAD'"></div>
         <!-- Other Page: Save and Download -->
         <!-- Save 有 data 跳重新命名，沒有 data 跳要不要儲存，沒有動都不跳 -->
         <div v-else class="space-x-4">