feat(plugins): Show multipart/form-data example and schema

[BreakBB]

Description

Request objects for multipart/form-data current don't show the example structure or schema, as application/json do. This PR reuses <ModelExample /> to also show example data for multipart/form-data. Also I enabled prettier with the projects settings, so some spacing inconsistencies are fixed as well.

Motivation and Context

Fixes #4581
Fixes #5169
Fixes #9756

How Has This Been Tested?

I used npm run dev and an oas3 file with multipart/form-data.

Screenshots (if appropriate):

Before

Example object

Partial schema

Unchanged Try It Out

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)
• 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).
• are not breaking changes.

Documentation

• 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

• 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.