fix: change submit button

app.py

@@ -9,8 +9,9 @@ st.title("Demo translate VI - EN")
 
 input_text = st.text_area("Input the Vietnamese text:", "")
 
-if st.button("Submit"):
-    if input_text:
+
+if input_text:
+    if st.button("Submit"):
         encoded_text = tokenizer(input_text, return_tensors="pt", padding=True, truncation=True)
     
         translated_text = translator(input_text)