fix: remove faker from application code

[tecoholic]

While testing the admin-portal, I noticed that the bundle size was huge and discovered that a lot of bloat is coming from the usage of faker.js in the application code. Faker.js should be limited to development and testing, as it has many definitions and seed data that can cause unnecessary bloat.

Here are some screenshots comparing the changes in bundle sizes before and after the change.

Before

Impact of Faker.js in the size

After

The Parsed bundle size fell from 5.84MB to 3.14MB as 46% reduction.

Caveat

I didn't particularly test the impact of this change on the functionality. I don't think there should be any. Mentioning it, just in case.

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[openedx-webhooks]

Thanks for the pull request, @tecoholic!

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.46%. Comparing base (a19fe04) to head (7c347e7).
Report is 87 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1194   +/-   ##
=======================================
  Coverage   85.46%   85.46%           
=======================================
  Files         508      508           
  Lines       11074    11074           
  Branches     2329     2329           
=======================================
  Hits         9464     9464           
  Misses       1566     1566           
  Partials       44       44           

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