fix: don't add ?import for @vite-ignoreed import

[sapphi-red]

Description

I tested this with the repro in #14850.

fix #14850

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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[sapphi-red]

@bluwy @patak-dev This seems to broke vitepress (mentioned in #14860).
It can be fixed by vuejs/vitepress#3173
But I'm not sure if users has the responsibility of adding ?import.

This PR will resolve some edge case issues:

• Public files imported was transformed by Vite
• Importing public files with /* @vite-ignore */ dynamic imports throws an error #14850

But on the other hand, this PR could cause some breakage that relied on this behavior and will make the use of @vite-ignore more difficult (as users will need to understand ?import needs to be appended in some cases).