[frontend] fix(inject): avoid DOM pollution between inject targets (#5080)

[antoinemzs]

Proposed changes

• Introduce inject filter to store query for iject expectation results

Testing Instructions

1. Create scenario with multiple payload injects (e.g. 3) and assign a single endpoint to each inject
2. Run multiple simulations of that scenario
3. Manually assign results to each Detection, Prevention expectations on each inject for the endpoint
4. In a given simulation: in targets, navigate down to the agent, display the Detection tab
5. Navigate to another inject, same agent target, display the Detection tab
6. It only shows the results for the Detection expectation of the current inject, not from any other

Related issues

• Closes Detection/Prevention results from a different test #5080

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 37.17%. Comparing base (280d53e) to head (8e7a987).
⚠️ Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
...t_result/InjectExpectationAggregatedAgentsView.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5634      +/-   ##
============================================
- Coverage     37.18%   37.17%   -0.01%     
- Complexity     4922     4923       +1     
============================================
  Files          1879     1879              
  Lines         49395    49395              
  Branches       6138     6136       -2     
============================================
- Hits          18368    18365       -3     
+ Misses        29937    29935       -2     
- Partials       1090     1095       +5     

Flag	Coverage Δ
backend	59.08% <ø> (+<0.01%)	⬆️
e2e	24.89% <ø> (ø)
frontend	0.47% <0.00%> (ø)

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