The drawCardToCanvas function had an old version of the card rendering logic
that leaked outside the function body (lines 505-731 were orphaned code).
This code referenced local variables (ctx, p, data, qrX, qrSize, PAD, etc.)
that only existed inside the function, causing ReferenceError at module load time
and crashing the entire app with a blank screen.
Also added missing lucide-react imports (Printer, Loader2, Share2, Download,
Check, Copy, Award, Zap, Info, Palette, Shield, ChevronUp, ChevronDown) that
were used in the JSX but not imported, causing the secondary Printer is not
defined ReferenceError.
Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>
