fix: dva export type

[xiaohuoni]

修改前，联想能找到对象，但是看不到类型提示。

修改后

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Name	Status	Preview	Updated
umi	✅ Ready (Inspect)	Visit Preview	Jun 29, 2022 at 3:05AM (UTC)

[codecov[bot]]

Codecov Report

Merging #8296 (2fc5ebd) into master (a3e7119) will not change coverage. The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #8296   +/-   ##
=======================================
  Coverage   33.97%   33.97%           
=======================================
  Files         358      358           
  Lines        9288     9288           
  Branches     2136     2136           
=======================================
  Hits         3156     3156           
  Misses       5787     5787           
  Partials      345      345           

Impacted Files	Coverage Δ
packages/plugins/src/dva.ts	39.06% <0.00%> (ø)
packages/babel-preset-umi/src/index.ts	100.00% <0.00%> (ø)

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[xiaohuoni]

同类问题应该还有，我想的解法是把 alias 加到 .umi/tsconfig.json 里。

因为 dva 这个包是不存在的，其他的导出，倒是没注意到还有同类问题

[yunyi1895]

这个问题什么时候修复好呢

[xiaohuoni]

https://github.com/umijs/umi/blob/43d373f35114378ec63cd3c66ca85a1997cd3f03/packages/preset-umi/src/features/tmpFiles/tmpFiles.ts#L583