Cloudfront URL config changes

[getvictor]

For #24868 (subtask)

Checklist for submitter

• Changes file added for user-visible changes in changes/, orbit/changes/ or ee/fleetd-chrome/changes.
  See Changes files for more information.
• Input data is properly validated, SELECT * is avoided, SQL injection is prevented (using placeholders for values in statements)
• Added/updated automated tests
• Manual QA for all new/changed functionality

[codecov]

Codecov Report

Attention: Patch coverage is 67.18750% with 21 lines in your changes missing coverage. Please review.

Project coverage is 63.83%. Comparing base (4c463b6) to head (3e5f304).
Report is 29 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/fleet/main.go	0.00%	19 Missing ⚠️
cmd/fleet/serve.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #25145      +/-   ##
==========================================
+ Coverage   54.30%   63.83%   +9.52%     
==========================================
  Files        1615     1615              
  Lines      153594   153642      +48     
  Branches     3987     3987              
==========================================
+ Hits        83416    98073   +14657     
+ Misses      63296    47764   -15532     
- Partials     6882     7805     +923     

Flag	Coverage Δ
backend	64.70% <67.18%> (+10.40%)	⬆️

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