update 'use example sequence' button position

Domain2GO.py

@@ -26,6 +26,7 @@ with st.sidebar:
     
     input_type = st.radio('Select input type', ['Enter sequence', 'Upload FASTA file'])
     if input_type == 'Enter sequence':
+        st.button('Use example sequence', on_click=click_button)
         if st.session_state.example_seq_button:
             st.session_state['sequence'] = st.text_area('Enter protein sequence in FASTA format.', 
                 value='>sp|O18783|PLMN_NOTEU\n'
@@ -33,7 +34,6 @@ with st.sidebar:
         else:
             st.session_state['sequence'] = st.text_area('Enter protein sequence in FASTA format.')
         st.session_state['name'] = st.session_state['sequence'].split('\n')[0].strip('>')
-        st.button('Use example sequence', on_click=click_button)
     else:
         protein_input = st.file_uploader('Choose file')
         if protein_input: