Certificate Validation QR Code Generator

Usage: This code generates a QR code for certificate validation. The user needs to input a certificate number in the provided input field and click on the "Generate QR Code" button to generate the QR code. The generated QR code can be downloaded in PNG format by clicking on it. The QR code contains a link to the certificate validation page with the certificate number as a parameter. The validation page can be customized based on the specific requirements of the certificate issuer.