build: remove style

[mlmoravek]

Based on the resend release of the standalone theme-oruga package, I removed the css part from the build.

Proposed Changes

• Remove build:style

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3df516b) 58.61% compared to head (9c1bbeb) 59.02%.
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #610      +/-   ##
===========================================
+ Coverage    58.61%   59.02%   +0.40%     
===========================================
  Files           89       97       +8     
  Lines         2448     2716     +268     
  Branches       819      913      +94     
===========================================
+ Hits          1435     1603     +168     
- Misses         902     1002     +100     
  Partials       111      111              

Flag	Coverage Δ
oruga	67.21% <ø> (ø)
oruga-next	50.98% <ø> (+2.84%)	⬆️

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see 15 files with indirect coverage changes

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