Fix icon key name in "View YAML" modal

[iansltx]

Fixes #34060.

• QA'd all new/changed functionality manually

For unreleased bug fixes in a release candidate, one of:

• Confirmed that the fix is not expected to adversely impact load test results

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 63.81%. Comparing base (aef9b84) to head (1406a3b).
⚠️ Report is 25 commits behind head on main.

Files with missing lines	Patch %	Lines
...SoftwareTitleDetailsPage/ViewYamlModal/helpers.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #34140   +/-   ##
=======================================
  Coverage   63.81%   63.81%           
=======================================
  Files        1876     1876           
  Lines      185510   185510           
  Branches     6863     6767   -96     
=======================================
  Hits       118386   118386           
  Misses      57463    57463           
  Partials     9661     9661           

Flag	Coverage Δ
frontend	53.67% <0.00%> (ø)

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