Description

We've been thinking about how to improve the ray data cli progress bar. Here is a high-level proposal:

1. Shorten the width/length of each line in this multi-progress bar layout.
2. improve readability by aligning the items across different progress bars
3. improve readability by cutting unnecessary texts

The current progress bars look like:

whereas we want something more like:

Use case

Make Data look more beautiful, have it render more easily on a wider range of terminal sizes.