Update app and Dockerfile with latest changes

app.py

@@ -393,7 +393,7 @@ def plot_predictions(audio_features, predictions):
 
 def main():
     cover_image = "images/cover.jpg"
-    st.image(cover_image, use_container_width=True)
+    st.image(cover_image, use_column_width=True)
     st.title("Chorus Finder")
     st.write("This app uses a pre-trained convolutional recurrent neural network to predict chorus locations in music. To learn more about this project, visit [github.com/dennisvdang/chorus-detection](https://github.com/dennisvdang/chorus-detection).")
     st.write("Enter a YouTube song URL to find the chorus!")