bug: fix aligment issue between name and desc

[Pompette]

Description

As mentionned by @boudhayan-dev there is an aligment issue between name and description column.

Motivation and Context

Fixes #8207

How Has This Been Tested?

Manually, checking where the markdown class appears and checked if looked ok everywhere.

Screenshots (if appropriate):

Checklist

My PR contains...

• No code changes (src/ is unmodified: changes to documentation, CI, metadata, etc.)
• Dependency changes (any modification to dependencies in package.json)
• [ X] Bug fixes (non-breaking change which fixes an issue)
• Improvements (misc. changes to existing features)
• Features (non-breaking change which adds functionality)

My changes...

• are breaking changes to a public API (config options, System API, major UI change, etc).
• are breaking changes to a private API (Redux, component props, utility functions, etc.).
• are breaking changes to a developer API (npm script behavior changes, new dev system dependencies, etc).
• [X ] are not breaking changes.

Documentation

• [X ] My changes do not require a change to the project documentation.
• My changes require a change to the project documentation.
• If yes to above: I have updated the documentation accordingly.

Automated tests

• [X ] My changes can not or do not need to be tested.
• My changes can and should be tested by unit and/or integration tests.
• If yes to above: I have added tests to cover my changes.
• If yes to above: I have taken care to cover edge cases in my tests.
• All new and existing tests passed.

[Pompette]

Hello @tim-lai , is there anything I should so we can merge this PR ? As I'm participating to the hacktoberfest I'm asking, to get sure it's ok for october :) !

[tim-lai]

@Pompette Thanks for the PR! This change is overly broad. There are many components that rely on the Markdown Component and its default className="markdown". Easy example is to look at the effect of the change on the Info object of "Swagger Petstore", where we would want to maintain the top/bottom margin.

Let's limit this PR change to also specifically target parameters-col_description and response-col_description.

[Pompette]

Hey @tim-lai , thanks for the review 💫

I added the margin again for .markdown, .renderedMarkdown { p, pre { and limited the changes to parameters-col_description and response-col_description.

Should be fine this way, let me know if you see something else 🙂