fix: save empty segment overrides request

[kyle-ssg]

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• I have run pre-commit to check linting
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• I have filled in the "Changes" section below?
• I have filled in the "How did you test this code" section below?
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Changes

• On an environment with versioning enabled, creating a change request with empty segment overrides was not sending the version id. This was due to it using the version id of the feature states that were used to create the version, a version now returns its id at the root level.

How did you test this code?

• Created a change request with no segments
• Created a change request with just feature states
• Saved a feature without a change request
• Saved segment overrides without a change request

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Name	Status	Preview	Comments	Updated (UTC)
docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 5, 2024 5:49pm
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[github-actions]

Uffizzi Preview deployment-52679 was deleted.

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ TypeError: w is undefined fn(common/stores/feature-list-store) View Issue
• ‼️ TypeError: w is undefined fn(common/stores/feature-list-store) View Issue

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