[backend/frontend] Improve search complexity and error handling (#5678)

[richard-julien]

See #5678

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (75da17e) 66.09% compared to head (5623061) 66.10%.
Report is 1 commits behind head on master.

Files	Patch %	Lines
...ncti-platform/opencti-graphql/src/config/errors.js	50.00%	3 Missing ⚠️
...ti-platform/opencti-graphql/src/database/engine.js	96.77%	2 Missing ⚠️
...latform/opencti-graphql/src/database/middleware.js	33.33%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5700   +/-   ##
=======================================
  Coverage   66.09%   66.10%           
=======================================
  Files         513      513           
  Lines       60771    60799   +28     
  Branches     4421     4414    -7     
=======================================
+ Hits        40167    40190   +23     
- Misses      20604    20609    +5     

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