Playtesting Followup: FRE Updates

[mxosman]

Description of the change

Updates the following items in the Onboard/First Run Experience:

• Replace Humphrey's email with our new support email
• Copy update: Settings & Publish
• Fix positioning of "Publish" box

Related issues

Closes #192

Checklists

Development

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• Tests have been written to cover the code changed/added as part of this pull request

Code review

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[lilidworkin]

Perfect!!