Add Newsletter Signup to Footer

[lovelymahor]

Is your feature request related to a problem? Please describe.
We need to enhance our website's footer by adding a newsletter signup section. This section will allow users to subscribe to our newsletter directly from the footer.

Describe the solution you'd like
I would like to add a newsletter sign-up section to the footer of the website. This section should include a text field for users to enter their email addresses and a subscribe button. It should integrate seamlessly with the current footer design and be visually appealing.

Describe alternatives you've considered
Placing the newsletter sign-up section in the header for more visibility.
Adding a pop-up modal for newsletter sign-ups instead of placing it in the footer.

Additional context
Please ensure the newsletter section matches the existing footer style, particularly in dark mode with the pink shade. The section should also be responsive and accessible.

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