feat: add analysis for spacing resets

[bartveneman]

Prior art: csssstats.com

This analysis checks for:

• scientific notation (0e0)
• signed numbers (+0, -0)
• floats (0.0)
• with or without units (0, 0em)
• vendor prefixed property names (-webkit-padding-inline)
• all of the values in a shorthand being zero (0 0 0 0, 0px 0 0em)
• combinations of the above (-moz-margin: 0 0px +0.0e0em)

Implementation sparked by @ohhelloana

[codecov-commenter]

Bundle Report

Changes will increase total bundle size by 728 bytes (0.26%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
analyzeCss-esm	30.82kB	728 bytes (2.42%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: analyzeCss-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
css-*.js	728 bytes	30.82kB	2.42%

Files in css-*.js:

• ./src/values/values.js → Total Size: 971 bytes

• ./src/index.js → Total Size: 31.1kB

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.87%. Comparing base (704d7ac) to head (3d98b8a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #467   +/-   ##
=======================================
  Coverage   99.86%   99.87%           
=======================================
  Files          18       18           
  Lines        2262     2320   +58     
=======================================
+ Hits         2259     2317   +58     
  Misses          3        3           

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