feat: Added observability events for video detail page

[irfanuddinahmad]

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 88.21%. Comparing base (196fdb5) to head (60906da).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1159      +/-   ##
==========================================
+ Coverage   88.09%   88.21%   +0.11%     
==========================================
  Files         394      394              
  Lines        8360     8392      +32     
  Branches     2016     2059      +43     
==========================================
+ Hits         7365     7403      +38     
+ Misses        953      947       -6     
  Partials       42       42              

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