Improved error handling

app.py

@@ -21,7 +21,7 @@ def translate(text, wait=True):
         if wait:
             with st.spinner(json_response["error"]):
                 bar = st.progress(0)
-                for progress in range(json_response["estimated_time"]):
+                for progress in range(int(json_response["estimated_time"]) + 1):
                     bar.progress(progress / json_response["estimated_time"])
                     time.sleep(1)
                 bar.empty()