Update app.py

app.py

@@ -350,7 +350,7 @@ class Application:
             # Generate API configuration
             _, config = self.yaml(components)
 
-            col2.download_button("Export", config, file_name="workflow.yml", mime="text/yaml", help="Export the API workflow as YAML")
+            col2.download_button("Export", config, file_name="workflow.yml", help="Export the API workflow as YAML")
 
         with st.expander("Data", expanded=not self.data):
             data = st.text_area("Input", height=10)