Users can upload an audio file

[LanesGood]

Story

As a user, I can upload an audio file to search against the database via audio similarity search

Requirements

• [x] I can read instructions on what types of files are accepted, how to upload, and what will happen after uploading
• [x] I can upload via direct file input
• [x] I can upload via drag-and-drop #18
• [ ] The system indicates uploading progress when connections are slow or files are large
• [x] The system provides validation of my uploaded files #19
• [x] The system provides readable errors when something goes wrong with the upload

[geohacker]

This should set some limitations:

• No audio files less than 5 seconds
• No audio files greater than ~5 mins (for now, it's arbitrary)