fix: ensure codes confirmation modal closes on course about page route

[adamstankiewicz]

For all changes

• Ensure adequate tests are in place (or reviewed existing tests cover changes)
• Ensure English strings are marked for translation. See documentation for more details.

Only if submitting a visual change

• Ensure to attach screenshots
• Ensure to have UX team confirm screenshots

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.00%. Comparing base (a9026e3) to head (99e59ba).

Files	Patch %	Lines
.../course/enrollment/components/ToEcomBasketPage.jsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1128      +/-   ##
==========================================
- Coverage   87.01%   87.00%   -0.01%     
==========================================
  Files         388      388              
  Lines        8064     8066       +2     
  Branches     1972     1939      -33     
==========================================
+ Hits         7017     7018       +1     
- Misses        998      999       +1     
  Partials       49       49              

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