Fix :the admin behavior for bucket requests

[RonanMorgan]

If you are connected as an admin, the bucket par defaut is "admin" but the endpoint Detection was using the "alert-api-1" name.

Anyway we should not use any of this two solutions when requesting for an URL, we need to use the Detection_id instead

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.

Please upload report for BASE (rs/use-organization-bucket@5c492a5). Learn more about missing BASE report.

Files	Patch %	Lines
src/app/api/api_v1/endpoints/detections.py	75.00%	1 Missing ⚠️
src/app/services/storage.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                      Coverage Diff                      @@
##             rs/use-organization-bucket     #343   +/-   ##
=============================================================
  Coverage                              ?   82.88%           
=============================================================
  Files                                 ?       31           
  Lines                                 ?      818           
  Branches                              ?        0           
=============================================================
  Hits                                  ?      678           
  Misses                                ?      140           
  Partials                              ?        0           

Flag	Coverage Δ
backend	82.98% <60.00%> (?)
client	81.66% <ø> (?)

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[frgfm]

I'm a bit lost here: would it be possible to directly put those commits in the bucket/org PR?