chore: Expand AnalyticsMetadata to allow JSON objects

[michaeldowseza]

Issue #, if available:

Description of changes:
The current analytics metadata gets added to the DOM element but only supports primitives. When introducing errorContext we will be using an object and so expanding support for it here.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.33%. Comparing base (fd512d9) to head (9c9767e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #130   +/-   ##
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  Coverage   99.33%   99.33%           
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  Files          30       30           
  Lines         751      751           
  Branches      199      199           
=======================================
  Hits          746      746           
  Misses          5        5           

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