FE-751: Adjust signup copy

[alex-e-leon]

🌟 What is the purpose of this PR?

Minor copy adjustment on signup form

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

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Project	Deployment	Actions	Updated (UTC)
hash	Ready	Preview, Comment	Jun 12, 2026 10:59am

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
hashdotdesign-tokens	Ignored		Jun 12, 2026 10:59am
petrinaut	Skipped		Jun 12, 2026 10:59am

[cursor]

PR Summary

Low Risk
Marketing copy only in the signup UI; no behavior, auth, or data changes.

Overview
Updates the Reserve your username bullet on the signup right panel: the line under that heading now reads Before someone else grabs @pizza! instead of @pizza goes fast! No logic or layout changes.

^{Reviewed by Cursor Bugbot for commit 68cb6cb. Bugbot is set up for automated code reviews on this repo. Configure here.}