Update README style : Apps using TUI

[thomas-mauran]

Preview

Description

Simply ordering the "Apps using tui" part of the readme to make it easier to navigate:

• Adding categories
• Adding alphabetical order sort
• Adding missing descriptions

Testing guidelines

No testing needed since it's a README update

Checklist

• [X] I have read the contributing guidelines.
• [X] I have added relevant tests.
• [X] I have documented all new additions.

[orhun]

Hey, ratatui is the actively maintained fork of tui-rs. If you are interested in contributing, I created an issue there: https://github.com/tui-rs-revival/ratatui/issues/179