feat: portal and embeddable sessions

[Justintime50]

Description

Testing

Pull Request Type

Please select the option(s) that are relevant to this PR.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Improvement (fixing a typo, updating readme, renaming a variable name, etc)

[keheitz]

It looks like one of the tests might need updating for 8.2 CI run-tests to pass? (or maybe it's flaky?)

[Justintime50]

It looks like one of the tests might need updating for 8.2 CI run-tests to pass? (or maybe it's flaky?)

Thanks! Had to re-record a cassette, good now!