feat(css): define CSS property value with formal syntax

[lc-soft]

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Reference: https://developer.mozilla.org/en-US/docs/Web/CSS/Value_definition_syntax

TODO:

• [x] Value definition parser
  • [x] Juxtaposition combinator
  • [x] Single bar combinator
  • [x] Double bar combinator
  • [x] Bracket combinator
  • [x] Double ampersand combinator
  • [x] Curly braces multiplier
  • [x] Question mark multiplier
• [x] Value matcher
• [ ] Fix memory leak bugs
• [ ] Use formal syntax to define the values of all CSS properties
• [ ] Let the UI library handle style properties based on the new CSS API

[commit-lint[bot]]

Features

• update css library (a2bbde9)

Contributors

lc-soft

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[Wizardboy92]

``

[codecov[bot]]

Codecov Report

Patch coverage: 62.20% and project coverage change: +1.23 :tada:

Comparison is base (3636ac4) 51.35% compared to head (a2bbde9) 52.59%.

Additional details and impacted files

@@             Coverage Diff              @@
##           v3.0-dev     #287      +/-   ##
============================================
+ Coverage     51.35%   52.59%   +1.23%     
============================================
  Files           103      146      +43     
  Lines         14937    14412     -525     
============================================
- Hits           7671     7580      -91     
+ Misses         7266     6832     -434     

Impacted Files	Coverage Δ
lib/css/include/css/parser.h	100.00% <ø> (ø)
lib/css/src/font_face_parser.c	66.07% <ø> (ø)
lib/css/src/properties/align_content.c	0.00% <0.00%> (ø)
lib/css/src/properties/box_shadow.c	0.00% <0.00%> (ø)
lib/css/src/properties/color.c	0.00% <0.00%> (ø)
lib/css/src/properties/display.c	0.00% <0.00%> (ø)
lib/css/src/properties/font_size.c	0.00% <0.00%> (ø)
lib/css/src/properties/font_style.c	0.00% <0.00%> (ø)
lib/css/src/properties/font_weight.c	0.00% <0.00%> (ø)
lib/css/src/properties/justify_content.c	0.00% <0.00%> (ø)
... and 106 more

... and 14 files with indirect coverage changes

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