fix(eap-spans): update web vitals functions for eap

[DominikB2014]

1. remove total_opportunity_score function, replace with opportunity_score(measurement.score.total)
2. Update opportunity_score to normalize from (0-1) on the backend

opportunity_score(vital) = ( count(<vital>.score.ratio) - sum(<vital>.score.ratio) ) /  total_vital_count

Where `total_vital_count` is the count of that vital without any group_by's, this way the opportunity_scores across the filtered data should add up to 1.

3. Revamp total_opportunity_score to be

total_opportunity_score() = sumOf(  [opportunity_score(<vital>) * WEIGHT[<vital>] for vital in VITALS ]

[codecov]

Codecov Report

Attention: Patch coverage is 98.55072% with 1 line in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...endpoints/test_organization_events_span_indexed.py	98.27%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #88242       +/-   ##
===========================================
+ Coverage   42.14%   87.79%   +45.65%     
===========================================
  Files        9976    10007       +31     
  Lines      565125   566679     +1554     
  Branches    22267    22210       -57     
===========================================
+ Hits       238153   497504   +259351     
+ Misses     326554    68741   -257813     
- Partials      418      434       +16     

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ IndexError: list index out of range /api/0/organizations/{organization_id_or_slug}/... View Issue

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