:chore: Fix the masking boxes appearances during proof generation

[wryonik]

No description provided.

[linear]

REG-637

[coderabbitai]

Walkthrough

The useBlackMask prop condition in the EmailCard component was changed from checking proof generation state (generatedProof !== null) to checking verification URL availability (verificationUrl !== null), altering the trigger for mask display behavior.

Changes

Cohort / File(s)	Summary
EmailCard prop condition update src/App.tsx	Modified useBlackMask prop condition from generatedProof !== null to verificationUrl !== null

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

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📥 Commits

Reviewing files that changed from the base of the PR and between 945774f and 03de622.

📒 Files selected for processing (1)

• src/App.tsx

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