Update app.py

app.py

@@ -473,7 +473,7 @@ def gate_ui():
     return False
 
 def main():
-    if not gate_uit:
+    if not gate_ui:
         return
     # st.set_page_config(page_title="Grant Buddy RAG", page_icon="🤖")
     st.title("🤖 Grant Buddy: Grant-Writing Assistant")