Inspect SSR transform

[antfu]

Clear and concise description of the problem

https://github.com/antfu/vite-plugin-inspect/issues/33#issuecomment-1211536957 by @nksaraf

Suggested solution

I guess currently we don't distinguish between client and SSR transform. We might need two maps storing them based on ctx.ssr flag and offering a new tab on UI for inspecting SSR transform diff.

Alternative

No response

Additional context

No response

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.