fix: use browser field if it is not likely UMD or CJS (fixes #9445)

[sapphi-red]

Description

When the following conditions were met, browser field was not used.

• (the package does not have exports field)
• (Non-SSR build or SSR build for WebWorker)
• the package has both both browser field and module field
• browser field is not likely UMD or CJS (the file does not include typeof exports or typeof module or module.exports)

fixes #9445

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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[bluwy]

Good catch. Looks like the logic doesn't do what the comment said.