chore: add legacy config to locale settings

[cuiyiming1998]

Types of changes

• New feature
• Bug fix
• Documentation change
• Coding style change
• Refactoring
• Performance improvement
• Test cases
• Continuous integration
• Typescript definition change
• Breaking change

Background and context

在setup中直接使用useI18n不会返回值

Solution

需要在createI18n中添加 legacy配置, 为false
https://vue-i18n.intlify.dev/guide/advanced/composition.html#basic-usage

How is the change tested?

Changelog

Changelog(CN)	Changelog(EN)	Related issues

Checklist:

• 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 master branch)

Other information