[Performance]: Adding Download qr code option

[DinkyRajpoot56]

Current Performance
Since their is no qr code download option

Expected Performance
I would Iike to add download qr code image option in this repo

Steps to Reproduce

1. Using React
2. Using React useState

Improved performance in qr-code generator
Enhanced management qr code generator and user interactions.

Additional Context
I would be thankful for getting this chance.
I have checked the existing issues
I'm a GSSoC'24-Extd contributor
I'm a Hacktoberfest'24 contributor
I am willing to work on this issue.

[github-actions]

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