fix(ui): Use correct platform component config variable name

[sachaudh]

Description

This PR just fixes an issue with a variable name. Turns out we are using platformComponentConfig rather than platformComponentsConfig 😢

Screenshots

User-facing documentation

• CHANGELOG.md is updated OR update is not needed
• documentation PR is created and is linked above OR is not needed

Testing and quality

• the change is production ready: the change is GA, or otherwise the functionality is gated by a feature flag
• CI results are inspected

Automated testing

• added unit tests
• added e2e tests
• added regression tests
• added compatibility tests
• modified existing tests

How I validated my change

[rhacs-bot]

Images are ready for the commit at 8ce9ca2.

To use with deploy scripts, first export MAIN_IMAGE_TAG=4.8.x-854-g8ce9ca26c8.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.25%. Comparing base (318baa6) to head (8ce9ca2).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #15475   +/-   ##
=======================================
  Coverage   49.25%   49.25%           
=======================================
  Files        2581     2581           
  Lines      189382   189382           
=======================================
+ Hits        93271    93273    +2     
+ Misses      88762    88760    -2     
  Partials     7349     7349           

Flag	Coverage Δ
go-unit-tests	49.25% <ø> (+<0.01%)	⬆️

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[sachaudh]

/retest-required