fix: parse container prelude correctly

[bartveneman]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.10%. Comparing base (d239179) to head (f89f1d4).

Files with missing lines	Patch %	Lines
src/parse-atrule-prelude.ts	92.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #94      +/-   ##
==========================================
+ Coverage   95.05%   95.10%   +0.05%     
==========================================
  Files          15       15              
  Lines        2446     2471      +25     
  Branches      630      636       +6     
==========================================
+ Hits         2325     2350      +25     
  Misses        121      121              

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[codecov-commenter]

Bundle Report

Changes will increase total bundle size by 1.35kB (1.03%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
@projectwallace/css-parser-esm	133.2kB	1.35kB (1.03%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: @projectwallace/css-parser-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
parse-*.js	1.35kB	17.5kB	8.38% ⚠️

Files in parse-*.js:

• ./src/parse-atrule-prelude.ts → Total Size: 16.9kB