fix: APP-590 name displayed as object edit profile

[r41ph]

Description

https://regennetwork.atlassian.net/browse/APP-590

Author Checklist

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please add links to any relevant follow up issues.

I have...

• provided a link to the relevant issue or specification
• provided instructions on how to test
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

How to test

1. Create a new user using an email address
2. Verify that the name in Edit Profile page is Unnamed instead of [object Object]

Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed all author checklist items have been addressed
• reviewed code correctness and readability
• verified React components follow DRY principles
• reviewed documentation is accurate
• reviewed tests
• manually tested (if applicable)

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[blushi]

tACK

[r41ph]

@erikalogie @S4mmyb see testing instructions

[erikalogie]

LGTM