fix(importAnalysis): skip encode in ssr

[bluwy]

Description

In SSR, because import specifiers are not needed to be encoded (unlike browsers), we can skip encoding altogether in import analysis. This was the initial issue that causes Nuxt to see two kinds of encoded and non-encoded links, because ssrLoadModule receives an id that we assume to be already un-encoded.

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines, especially the Pull Request Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Update the corresponding documentation if needed.
• Ideally, include relevant tests that fail without this PR but pass with it.

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[patak-dev]

Ah, good catch!