Update utils.py

utils.py

@@ -9,6 +9,20 @@ def go_to(page_name, from_callback=False):
     if not from_callback:
         st.rerun()
 
+def add_bottom_navigation(previous_page, next_page):
+    col1, col2, col3 = st.columns([1, 3, 1])
+
+    st.markdown("---")
+    if previous_page is not None:
+        with col1:
+            if st.button("Previous"):
+                go_to(previous_page)
+
+    if next_page is not None:
+        with col3:
+            if st.button("Next"):
+                go_to(next_page)
+
 # Define pipeline stages
 pipeline_data = {
     "Data Collection": {