[CORL-3177]: update to grab the ORIGIN from the count.js script for

[kabeaty]

What does this PR do?

This updates to grab the ORIGIN from the count.js script for comment counts.

These changes will impact:

• [ ] commenters
• [ ] moderators
• [ ] admins
• [x] developers

What changes to the GraphQL/Database Schema does this PR introduce?

none

Does this PR introduce any new environment variables or feature flags?

no

If any indexes were added, were they added to INDEXES.md?

n/a

How do I test this PR?

You can check that the origin is correctly grabbed from the script on the comment embed story page.

Were any tests migrated to React Testing Library?

How do we deploy this PR?

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