Migrated to BunnyCDN for image upload

[SujithThirumalaisamy]

• As we are not using s3 for CDN. Migrated the image upload to BunnyCDN
• Upload happens via the BE because Bunny uses API key to authenticate content upload. So you cannot do it in FE

[VineeTagarwaL-code]

Let me know your thoughts on this approach. If it makes sense, please push the updates, and I'll merge them afterward. Also, pull the latest changes from the main branch and incorporate your updates into the sample and README. Thanks!

[VineeTagarwaL-code]

Also please add the domain nextjs.config.js

here it is for your easiness
domains: ['storage.bunnycdn.com'],

[SujithThirumalaisamy]

Also please add the domain nextjs.config.js

here it is for your easiness domains: ['storage.bunnycdn.com'],

Will do it while deploying. We will not be using the base storage.bunnycdn.com we will use the custom cdn url