fix(qr-button): increase mini QR code size to 80px

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Co-Authored-By: Claude <noreply@anthropic.com>

apps/web/src/components/common/QRCodeButton.tsx

@@ -61,7 +61,7 @@ export function QRCodeButton({ url, style }: QRCodeButtonProps) {
             Object.assign(e.currentTarget.style, buttonStyles)
           }}
         >
-          <QRCodeSVG value={url} size={72} level="L" />
+          <QRCodeSVG value={url} size={80} level="L" />
         </button>
       </Popover.Trigger>