fix: user id not passing in registration success event

[syedsajjadkazmii]

Description

User ID was not being passed in the registration success event so this PR makes an identify call before firing the registration success event so that the success event can have the user id.

JIRA

VAN-2018

How Has This Been Tested?

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Screenshots/sandbox (optional):

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Before	After

Merge Checklist

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• Is there adequate test coverage for your changes?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.21%. Comparing base (aa19c62) to head (b0d396f).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #121      +/-   ##
==========================================
- Coverage   91.23%   91.21%   -0.02%     
==========================================
  Files          91       91              
  Lines        1711     1719       +8     
  Branches      407      411       +4     
==========================================
+ Hits         1561     1568       +7     
- Misses        147      148       +1     
  Partials        3        3              

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[abdullahwaheed]

LGTM