feat(docs): add vkui-docs-theme components + minimal doc

[BlackySoul]

Описание

• добавляем компоненты для темы документации
• добавляем в новую документацию копипасту страничек для примера

Release notes

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

[github-actions]

size-limit report 📦

Path	Size
JS	388.99 KB (0%)
JS (gzip)	118.04 KB (0%)
JS (brotli)	97.17 KB (0%)
JS import Div (tree shaking)	1.56 KB (0%)
CSS	341.52 KB (0%)
CSS (gzip)	42.29 KB (0%)
CSS (brotli)	33.71 KB (0%)

[github-actions]

e2e tests

⚠️ Some screenshots were failed. See Playwright Report.

Playwright Report

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.56%. Comparing base (446b1cd) to head (2cc6f7e).
Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8106      +/-   ##
==========================================
+ Coverage   95.55%   95.56%   +0.01%     
==========================================
  Files         398      398              
  Lines       11326    11355      +29     
  Branches     3731     3742      +11     
==========================================
+ Hits        10822    10851      +29     
  Misses        504      504              

Flag	Coverage Δ
unittests	95.56% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

👀 Docs deployed

• ❌ Styleguide
• ❌ Storybook
• ✅ Docs beta

Commit 2cc6f7e

[inomdzhon]

Это – легендарно и красиво!

Оставил комменты, но их можно в рамках другого PR решить