[ENT-9788] Add segment event for "Beta Video Banner" page views

[mahamakifdar19]

Ticket:
https://2u-internal.atlassian.net/browse/ENT-9788

Description
Added a segment event for "Beta Video Banner" page views.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 88.46%. Comparing base (29a58c3) to head (b79a0b8).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1224      +/-   ##
==========================================
+ Coverage   88.43%   88.46%   +0.02%     
==========================================
  Files         399      399              
  Lines        8519     8548      +29     
  Branches     2091     2101      +10     
==========================================
+ Hits         7534     7562      +28     
- Misses        942      944       +2     
+ Partials       43       42       -1     

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