fix: optimize type definition

[kiner-tang]

• fix: setFieldsValue method triggers a TypeScript type check error with optional fields ant-design/ant-design#42941
  Before:
  

After:

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Name	Status	Preview	Comments	Updated (UTC)
field-form	❌ Failed (Inspect)			Jun 9, 2023 2:10pm

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[BoyYangzai]

之前的版本好像也能达到相同的效果
@kiner-tang

[kiner-tang]

之前的版本好像也能达到相同的效果 @kiner-tang

RecursivePartial 这个工具如果在 rc-field-form 用看起来确实是正常的，但如果直接把这个工具原原本本拷贝到 antd 项目，就会发现上面的问题，应该是 rc-field-form 的 Typescript 版本跟 antd 不一致，应该是要以 antd 里面的为准。而且加 NonNullable 算是一个兜底，排除 undefined 的情况，如果不是 undefined , 不会有任何影响