fix: 修复入口文件无法按平台扩展名加载的问题

[yesmeck]

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[codecov]

Codecov Report

Merging #1197 into master will increase coverage by 0.00%.
The diff coverage is 93.33%.

@@           Coverage Diff           @@
##           master    #1197   +/-   ##
=======================================
  Coverage   95.26%   95.26%           
=======================================
  Files         350      350           
  Lines        3693     3698    +5     
  Branches      520      546   +26     
=======================================
+ Hits         3518     3523    +5     
  Misses        173      173           
  Partials        2        2           

Impacted Files	Coverage Δ
packages/remax-cli/src/getEntries.ts	100.00% <ø> (ø)
packages/remax-cli/src/build/utils/paths.ts	91.30% <92.30%> (+2.41%)	⬆️
packages/remax-cli/src/build/utils/web.ts	100.00% <100.00%> (ø)
.../webpack/plugins/NativeFiles/createPageManifest.ts	95.23% <100.00%> (ø)

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