Improve CLI output formatting using Rich

Currently, Humdrum prints video results in a simple numbered list. To enhance readability and user experience, we can use a Python TUI library like Rich to:

- Display video results in a table with columns for title, channel, views, and upload date.
- Add optional color or styling to differentiate titles, numbers, and other metadata.
- Make the output easier to scan and more visually appealing.

Additional Notes:
This improvement is focused on enhancing the user interface of the CLI without changing the underlying functionality of Humdrum.

Proposed steps:

- Install and integrate the Rich library.
- Replace current print statements for video lists with a formatted table.
- Test the CLI to ensure it still works with user input selection.