Tforkner/4060 metrics key

[thetif]

Resolves #4060

Description

Updated apd loader to assign keys to metrics.

Steps to manually verify this change

1. open an existing APD
2. look at the reducer in the browser and verify that outcomes looks the same as before and metrics now has keys

This pull request is ready to review when

• Automated tests are updated (and all tests are passing)
• Pull request has been labeled, if applicable with feature, content, bug, tests, refactor
• Associated OpenAPI documentation has been updated
• The experience passes a basic manual accessibility audit (keyboard nav, screenreader, text scaling) OR an exemption is documented

This pull request can be merged when

• Code has been reviewed by someone other than the original author
• QA has verified the accessibility and functionality related to the change
• Design has approved the experience
• Product has approved the experience

[codecov-commenter]

Codecov Report

Merging #4126 (fb82c95) into main (1e23385) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #4126   +/-   ##
=======================================
  Coverage   87.63%   87.63%           
=======================================
  Files         215      215           
  Lines        4924     4925    +1     
  Branches     1258     1259    +1     
=======================================
+ Hits         4315     4316    +1     
  Misses        556      556           
  Partials       53       53           

Impacted Files	Coverage Δ
...rc/pages/admin/fed-admin/DelegateStateAdminForm.js	65.90% <100.00%> (ø)
...s/oms/OutcomesAndMetrics/OutcomeAndMetricReview.js	90.00% <100.00%> (ø)
web/src/redux/reducers/apd.js	96.87% <100.00%> (+0.02%)	⬆️

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[tbolt]

Looks good. no more errors in the console about the keys

[cms-eapd-bot]

This deploy was cleaned up.

[mirano-darren]

error doesn't appear anymore!