feat: site add codesandbox support

[brenner8023]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added/updated or not needed
• Docs and demo have been added/updated or not needed

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Component style update
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Application (the showcase website) / infrastructure changes
• Other... Please describe:

What is the current behavior?

组件demo增加在codesandbox中编辑的功能

What is the new behavior?

Other information

[idux-bot]

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[codecov]

Codecov Report

Merging #665 (87fe7bd) into main (bcdffdb) will increase coverage by 0.25%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #665      +/-   ##
==========================================
+ Coverage   83.66%   83.92%   +0.25%     
==========================================
  Files         396      396              
  Lines        9897     9907      +10     
  Branches     2273     2277       +4     
==========================================
+ Hits         8280     8314      +34     
+ Misses       1617     1593      -24     

Impacted Files	Coverage Δ
...ges/cdk/scroll/src/strategy/blockScrollStrategy.ts	86.66% <0.00%> (+2.66%)	⬆️
packages/cdk/scroll/src/utils.ts	85.33% <0.00%> (+32.00%)	⬆️

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