Update app.py

app.py

@@ -240,7 +240,8 @@ set_page_elements = """async () => {
         }
     }
 
-    const gradioEl = document.querySelector('body > gradio-app').shadowRoot;
+    document.title = '修图神器';
+    var gradioEl = document.querySelector('body > gradio-app').shadowRoot;
     if (!gradioEl) {
         gradioEl = document.querySelector('body > gradio-app');
     }