chore(demo): use css variable instead of shadow mixin

[splincode]

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Refactoring
• Build or CI related changes
• Tests related changes
• Documentation content changes

[lumberjack-bot]

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[bundlemon]

BundleMon

Files updated (2)

Status	Path	Size	Limits
✅	demo/browser/runtime.(hash).js	41.11KB (-11B -0.03%)	+10%
✅	demo/browser/main.(hash).js	375.94KB (-19B 0%)	+10%

Unchanged files (3)

Status	Path	Size	Limits
✅	demo/browser/vendor.(hash).js	198.17KB	+10%
✅	demo/browser/polyfills.(hash).js	11.22KB	+10%
✅	demo/browser/styles.(hash).css	1.22KB	+10%

Total files change -30B 0%

Groups updated (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	2.28MB (+101B 0%)	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (92553f7) 71.92% compared to head (6de22a5) 71.92%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6146   +/-   ##
=======================================
  Coverage   71.92%   71.92%           
=======================================
  Files        1464     1464           
  Lines       16024    16024           
  Branches     2283     2283           
=======================================
  Hits        11525    11525           
  Misses       4127     4127           
  Partials      372      372           

Flag	Coverage Δ
addon-charts	71.10% <ø> (ø)
addon-doc	60.08% <ø> (ø)
addon-mobile	60.49% <ø> (ø)
addon-table	60.37% <ø> (ø)
addon-tablebars	90.90% <ø> (ø)
cdk	78.65% <ø> (ø)
core	77.89% <ø> (ø)
kit	70.19% <ø> (ø)
summary	71.92% <ø> (ø)

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[vladimirpotekhin]

should we mark shadow-mixins as deprecated ?

[splincode]

should we mark shadow-mixins as deprecated ?
done