fix(checkbox): add checkbox-input style to solve the problem of chec…

[Saber-Kurama]

…kbox nesting

Types of changes

• New feature
• Bug fix
• Enhancement
• Component style change
• Typescript definition change
• Documentation change
• Coding style change
• Refactoring
• Test cases
• Continuous integration
• Breaking change
• Others

Background and context

Solution

How is the change tested?

Changelog

Component	Changelog(CN)	Changelog(EN)	Related issues
checkbox	增加 checkbox-input 样式 来解决checkbox 嵌套的问题	add checkbox-input style to solve the problem of checkbox nesting	#2103

Checklist:

• Test suite passes (npm run test)
• Provide changelog for relevant changes (e.g. bug fixes and new features) if applicable.
• Changes are submitted to the appropriate branch (e.g. features should be submitted to feature branch and others
  should be submitted to main branch)

Other information