Update ui.py

ui.py

@@ -139,7 +139,7 @@ def APP():
             
             with tab2:
                 st.markdown("### newMATTER Bio Lab Operations")
-                response=requests.get(f"https://thexforce-combat-backend.hf.space/user/operations/{st.session_state.get("username")}",headers={
+                response=requests.get(f"https://thexforce-combat-backend.hf.space/user/operations/{st.session_state.get('username')}",headers={
                     
                     "Content-Type":"application/json",
                     "Authorization":f"Bearer {tok}"