feat: support a new Welcome page

[mortalYoung]

简介

• 优化 Welcome 页面
• 移除 StoryBook 的自定义首页

Resolved #349

[codecov]

Codecov Report

Merging #508 (2429e1d) into main (00e8f7b) will decrease coverage by 0.02%.
The diff coverage is 77.77%.

@@            Coverage Diff             @@
##             main     #508      +/-   ##
==========================================
- Coverage   85.67%   85.64%   -0.03%     
==========================================
  Files         180      182       +2     
  Lines        5290     5308      +18     
  Branches     1185     1186       +1     
==========================================
+ Hits         4532     4546      +14     
- Misses        751      755       +4     
  Partials        7        7              

Impacted Files	Coverage Δ
src/workbench/editor/welcome/index.tsx	60.00% <33.33%> (-40.00%)	⬇️
src/workbench/editor/welcome/hooks.ts	84.61% <84.61%> (ø)
src/workbench/editor/welcome/logo.tsx	100.00% <100.00%> (ø)
src/molecule.api.ts	100.00% <0.00%> (ø)
src/services/theme/colorThemeService.ts	100.00% <0.00%> (ø)

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[wewoor]

@mortalYoung 这个测试 Case 在一定条件下就会失败

[mortalYoung]

@mortalYoung 这个测试 Case 在一定条件下就会失败

什么条件下会失败，有复现的过程吗

[wewoor]

@mortalYoung 这个测试 Case 在一定条件下就会失败

什么条件下会失败，有复现的过程吗

感觉是不是异步的问题，因为之前 main 分支经常失败，重跑就好

[wewoor]

+1