[Feature]: Change buttons on QR code page

[eeporter]

Pre-flight checklist

• I have searched the existing issues

Problem to solve

Currently the buttons on the final page say "Print QR Codes" and "Complete Surveying Process". They should say "Print Coupon Codes" and "Return to Home Page". There should also be some space between the two buttons.

Reference Image

Proposed solution or API

No response

Alternatives considered

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Additional context

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