feat: added cohesion events tracking

[ayesha-waris]

INF-1661

Description

Incorporating new events into the Authn MFE using Cohesion. This will allow the RV team to leverage these events effectively for their specific requirements.

Events

• This event fires when a user submits their and clicks on "Create an account for free" CTA
• This event fires when a user deselects the checkbox for "I agree that edx can send me marketing messages" CTA
• This event fires when a user submits their and clicks on "Sign In" CTA

[codecov]

Codecov Report

Attention: Patch coverage is 40.27778% with 43 lines in your changes missing coverage. Please review.

Project coverage is 85.23%. Comparing base (1477ed3) to head (d62a88e).
Report is 2 commits behind head on 2u-main.

Files with missing lines	Patch %	Lines
src/cohesion/index.js	0.00%	29 Missing and 5 partials ⚠️
src/cohesion/data/reducers.js	0.00%	4 Missing and 2 partials ⚠️
...gister/components/ConfigurableRegistrationForm.jsx	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           2u-main    #1329      +/-   ##
===========================================
- Coverage    86.57%   85.23%   -1.35%     
===========================================
  Files          134      140       +6     
  Lines         2413     2485      +72     
  Branches       669      679      +10     
===========================================
+ Hits          2089     2118      +29     
- Misses         311      347      +36     
- Partials        13       20       +7     

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