Retract #3161 due to broken placement styles

[imnasnainaec]

#3161 used sx color functions with no regard for different size/margin/placement handling between style and sx. As a consequence, the announcement banner and the loading button spinning wheel (and possibly other things) were way out of place:

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This change is 

[jasonleenaylor]

Reviewed 7 of 7 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 75.13%. Comparing base (2e5d278) to head (4753f08).

Files	Patch %	Lines
src/components/ProjectExport/DownloadButton.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3188      +/-   ##
==========================================
+ Coverage   75.11%   75.13%   +0.02%     
==========================================
  Files         275      275              
  Lines       10422    10413       -9     
  Branches     1232     1231       -1     
==========================================
- Hits         7828     7824       -4     
+ Misses       2236     2231       -5     
  Partials      358      358              

Flag	Coverage Δ
backend	84.24% <ø> (+0.06%)	⬆️
frontend	66.96% <66.66%> (-0.02%)	⬇️

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[andracc]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)