feat: add hero image

[xrkffgg]

close #393

新增首页标题配图

Preview

[github-actions]

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[github-actions]

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[PeachScript]

要不 dumi 文档还是拿掉 hero.image，看着这么大碗饭，好容易饿…

[codecov]

Codecov Report

Merging #396 (edc197b) into master (129a2da) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #396   +/-   ##
=======================================
  Coverage   93.01%   93.01%           
=======================================
  Files         105      105           
  Lines        2076     2077    +1     
  Branches      695      676   -19     
=======================================
+ Hits         1931     1932    +1     
  Misses        141      141           
  Partials        4        4           

Impacted Files	Coverage Δ
packages/theme-default/src/layout.tsx	85.71% <100.00%> (+0.34%)	⬆️

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[xrkffgg]

要不 dumi 文档还是拿掉 hero.image，看着这么大碗饭，好容易饿…

好的 👌

[mizi-lin]

这哪个版本支持了?

[PeachScript]

1.1.0-rc 版