actually apply Cache-Control to static resources

[srabraham]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 69.98%. Comparing base (68d4d65) to head (f3ee36d).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/ims/application/_main.py	0.00%	2 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (100.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1573      +/-   ##
==========================================
- Coverage   69.99%   69.98%   -0.01%     
==========================================
  Files         186      186              
  Lines        9234     9235       +1     
  Branches     1490     1492       +2     
==========================================
  Hits         6463     6463              
- Misses       2659     2660       +1     
  Partials      112      112              

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