Update app.py

app.py

@@ -108,6 +108,14 @@ footer a {
     color: #aaa !important;
 }
 
+/* Hide the model selection dropdown and its label */
+label[for="Select Model"],
+#Select\\ Model {
+    display: none !important;
+}
+
+
+
 """
 
 # 3. Secure Chat Logic