Improve messaging at model load

app.py

@@ -20,13 +20,15 @@ st.set_page_config(
         tokenizers.AddedToken: lambda _: None,
     },
     allow_output_mutation=True,
+    show_spinner=False
 )
 def load_classifier() -> Pipeline:
     classifier = pipeline("zero-shot-classification", model="facebook/bart-large-mnli")
     return classifier
 
 
-classifier = load_classifier()
+with st.spinner(text="Setting stuff up related to the inference engine..."):
+    classifier = load_classifier()
 
 st.title("Zero-shot classification from tabular data")
 st.text(