fix(hubspot): create hubspot company with domain

[matthewelwell]

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Changes

Ensure that companies created when a user doesn't join an organisation are created with their domain.

How did you test this code?

Updated a unit test.

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[github-actions]

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.96%. Comparing base (507080e) to head (065d02b).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3844   +/-   ##
=======================================
  Coverage   95.96%   95.96%           
=======================================
  Files        1126     1126           
  Lines       35786    35789    +3     
=======================================
+ Hits        34342    34345    +3     
  Misses       1444     1444           

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[zachaysan]

Looks good. One tiny small suggestion.