Claim New Ads Accounts in the Google Combo Accounts Card.

[ankitrox]

Changes proposed in this Pull Request:

Closes #2582

Replace this with a good description of your changes & reasoning.

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Detailed test instructions:

Additional details:

Changelog entry

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.0%. Comparing base (d3f4f6f) to head (e5bb120).

Additional details and impacted files

@@                             Coverage Diff                              @@
##           feature/2567-kickoff-mc-ads-account-creation   #2642   +/-   ##
============================================================================
  Coverage                                          63.0%   63.0%           
============================================================================
  Files                                               323     323           
  Lines                                              5169    5169           
  Branches                                           1279    1279           
============================================================================
  Hits                                               3257    3257           
  Misses                                             1736    1736           
  Partials                                            176     176           

Flag	Coverage Δ
js-unit-tests	63.0% <ø> (ø)

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