[GSSoC'24][Feat] Making Newsletter Subscription Functional

[Apurv7777]

I will add a user-friendly newsletter subscription feature to the website. This will allow visitors to easily subscribe to our newsletters and receive updates about offers, sales, and new products directly in their inbox. This feature is essential for increasing user engagement and driving traffic to the site.

• Users should be able to subscribe, unsubscribe, and manage their subscription preferences.
• Confirmation email after subscribing.
• Unsubscribe link in every email.

Integration with Email Marketing Platform:

• Connect the form to Mailchimp using their API.
• Automatically add new subscribers to the Mailchimp list.
• Sync user preferences with Mailchimp.

Responsive Design

[github-actions]

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