fix: playground/vue-jsx, fix import TsImportFile extension in TsImport component

[liyincode]

Description

<template>
  <h2>Ts Import</h2>
  <p class="ts-import">{{ foo }}</p>

  <Bar />
</template>

<script setup lang="tsx">
import { foo } from './TsImportFile.js'

const Bar = () => (
  <div class="bar">
    <p>Bar</p>
  </div>
)
</script>

The purpose of this component is to test the import of .ts files, but here it actually has a .js extension. I think it would be more reasonable to remove the .js extension. import { foo } from './TsImportFile'

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What is the purpose of this pull request?

• [ ] Bug fix
• [ ] New Feature
• [ ] Documentation update
• [X] Other

Before submitting the PR, please make sure you do the following

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