fix: callbacks not firing in React 18+ with StrictMode

[turnervink-finch]

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What is changing?

What does this pull request change?

• Fixes an issue where callbacks were not fired when using React 18+ with StrictMode enabled

⚠️ What breaking changes will developers need to handle?

Do any of the changes require users of the SDK to handle breaking changes when they update to the new version?

No

Why is it changing?

What is the reason behind these changes? What problems do they solve, or what features do they add?

Addresses a bug that breaks core functionality for users of React 18+ with StrictMode

Relevant resources

Please link to any related issues, pull requests, etc. that offer context to this change

What steps did you take to test this?

Please detail the steps you have taken to validate that the proposed changes function as expected, and that existing functionality is not broken by the proposed changes.

This can include manual testing with proof of results, as well as detailing automated testing that was added or modified.

Verified manually using the example React app that the model could not be closed before this fix, but can be after it.

Screenshots

Include screenshots to back up the results of the testing detailed above

n/a

Was the relevant documentation updated?

Is there any documentation that requires updates along with these changes?

n/a

[vprado-dev]

Nice work!