chore(create-vite): remove wrapper div for react template

[bluepower]

Description

Description:
Remove wrapper <div> for template-react and template-react-ts
Files:
packages/create-vite/template-react-ts/src/App.tsx
packages/create-vite/template-react/src/App.jsx
Change:
use <>...</> syntax to group elements without a wrapper node.

Additional context

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the PR Title Convention.
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• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

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