Fix LocalsSettings type

[waltjones]

Description of the change

The type declaration for LocalsSettings has a wrong key name. Fixing this won't break any existing clients, since the code that reads this object doesn't support using the wrong key name.

Type of change

• Bug fix (non-breaking change that fixes an issue)

Related issues

Fixes: #989

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• "Ready for review" label attached to the PR and reviewers assigned
• Issue from task tracker has a link to this pull request
• Changes have been reviewed by at least one other engineer

[ijsnow]

👍

[cyrusradfar]

lgtm