fix: Proper ordering of collected CSS

[thymikee]

Summary

The css from collect function in SSR favored @rules before normal ones, which resulted in broken CSS order.

Test plan

Fixed tests (also running them through prettier for readability)

[codecov]

Codecov Report

Merging #114 into master will decrease coverage by 0.27%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #114      +/-   ##
==========================================
- Coverage   97.65%   97.38%   -0.28%     
==========================================
  Files          18       18              
  Lines         341      344       +3     
  Branches       59       60       +1     
==========================================
+ Hits          333      335       +2     
- Misses          8        9       +1

Impacted Files	Coverage Δ
src/server/collect.js	97.5% <100%> (-2.5%)	⬇️

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