Command Explorer: add a catalog as there are too many commands

[xiaoxstz]

Prerequisites

• [x] I have written a descriptive issue title.
• [X] I have searched all issues to ensure it has not already been reported.

Summary

There are too many commands, so it's hard to find the command you want.

It's better if there is a similar design like PowerShell ISE

Proposed Design

No response

[JustinGrote]

Thanks for the enhancement suggestion! This will get flagged for a roadmap if it gets noted for active development.