feat: Fixed delete for additional video url fields (sumac)

[vladislavkeblysh]

• Fixed delete for additional video url fields

[openedx-webhooks]

Thanks for the pull request, @vladislavkeblysh!

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[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (open-release/sumac.master@e0ec87c). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...ttingsModal/components/VideoSourceWidget/index.jsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@                     Coverage Diff                      @@
##             open-release/sumac.master    #2471   +/-   ##
============================================================
  Coverage                             ?   93.26%           
============================================================
  Files                                ?     1051           
  Lines                                ?    20418           
  Branches                             ?     4381           
============================================================
  Hits                                 ?    19042           
  Misses                               ?     1315           
  Partials                             ?       61           

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[rayzhou-bit]

lgtm!