little detail: use placeholders on startup
Created by: mjourdan
Here is a small suggestion to improve the UX.
Expected Behavior
Gradio immediately displays the library.
Current Behavior
During a short but still noticeable time, a message says the library is empty. This makes the user worry she has lost her collection.
Steps to Reproduce
Cold start gradio.
Detailed Description
On startup, the library should show as many placeholders as there are items in the library, and progressively replace them with actual content while loading.