[Bug]: Incomplete gradient on the newsletter subscribe button

[pari-dubey1]

🐞 Description

There's a visual bug on the "Subscribe" button in the footer's newsletter section. The button's gradient background is not applied correctly. It only appears on the left portion of the button containing the send icon.

✅ Expected Behavior

The entire button should have a smooth, continuous gradient that spans from the icon to the end of the text, creating a unified look.

📸 Screenshot

[github-actions]

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[ArthSonani]

i would like to work on this issue, @HarshS16 or @pari-dubey1 could you please assign this task to me ?