feat(SubnavigationButton): add disabled styles

[SevereCloud]

• Unit-тесты
• e2e-тесты
• Дизайн-ревью
• Документация фичи
• Release notes

Описание

Добавляем disabled состояние для SubnavigationButton

Release notes

Улучшения

• SubnavigationButton: добавлено disabled состояние

[github-actions]

size-limit report 📦

Path	Size
JS	394.96 KB (+0.02% 🔺)
JS (gzip)	119.76 KB (+0.01% 🔺)
JS (brotli)	98.47 KB (+0.04% 🔺)
JS import Div (tree shaking)	1.56 KB (0%)
CSS	347.71 KB (+0.03% 🔺)
CSS (gzip)	43.03 KB (-0.02% 🔽)
CSS (brotli)	34.37 KB (+0.14% 🔺)

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[github-actions]

e2e tests

Playwright Report

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.53%. Comparing base (4f2d7c0) to head (cb1f70c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8243   +/-   ##
=======================================
  Coverage   95.53%   95.53%           
=======================================
  Files         404      404           
  Lines       11553    11554    +1     
  Branches     3836     3837    +1     
=======================================
+ Hits        11037    11038    +1     
  Misses        516      516           

Flag	Coverage Δ
unittests	95.53% <100.00%> (+<0.01%)	⬆️

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[github-actions]

👀 Docs deployed

• ✅ Styleguide
• ✅ Storybook
• ✅ Docs beta

Commit cb1f70c