show spinner while creating embeddings

app.py

@@ -64,8 +64,8 @@ def load_app():
                 vectorStore = pickle.load(f)
             st.success('Text embeddings loaded from disk')
         else:
-            embeddings = HuggingFaceEmbeddings()
             with st.spinner(f"Creating vector store embeddings..."):
+                embeddings = HuggingFaceEmbeddings()
                 vectorStore = FAISS.from_texts(chunks, embeddings)
                 with open(f"{store_name}.pkl", "wb") as f:
                     pickle.dump(vectorStore, f)