PR Summary

Simplify parameter injection UI and fix a few bugs.

• Stop showing the parameter description from the help cache.
• Stop showing the naming restrictions, and simplify the pattern recommendation.
• Use the command snippet as the caption with the short description generated by GPT.
• Fix the value replacement code to set Updated correctly
• Fix the placeholder-parameter pairing code to handle the case where a code block contains multiple az commands.

It's easier to review after ignoring white space changes:
https://github.com/PowerShell/ProjectMercury/pull/246/files?w=1