feat(script): add script to remove useless locale key

[HsxMark]

Checklist

• Changes have been tested locally and work as expected.
• All tests in workflows pass successfully.
• Documentation has been updated if necessary.
• Code formatting and commit messages align with the project's conventions.
• Comments have been added for any complex logic or functionality if possible.

This PR is a ..

• 🆕 New feature
• 🐞 Bug fix
• 🛠 Refactoring
• ⚡️ Performance improvement
• 🌐 Internationalization
• 📄 Documentation improvement
• 🎨 Code style optimization
• ❓ Other (Please specify below)

Related Issues

• Describe the source of related requirements, such as links to relevant issue discussions.
• e.g. close #xxxx, fix #xxxx

Description

• Please insert your description here and provide info about the "what" this PR is solving.

Additional Context

添加了用于删除弃用 locale key 的脚本
（实际上，删除弃用键是相对的）

npm locale redundant_rm <source> <target>

用例

npm locale redundant_rm zh-Hans en

即可去除在zh-Hans中不存在但en中存在的键