Fix: Remove Extra Footer Spacing (Dark Mode Inconsistency)

[Gagan202005]

📌 Summary

This PR removes unnecessary top margin applied to the footer, which was creating extra white space at the bottom of the page. The issue was especially noticeable in dark mode, where the spacing looked visually inconsistent compared to light mode.

---

This PR Resolves keploy/keploy#3656

🔍 Problem Description

The footer had the following CSS rule:

footer {
  margin-top: 4%;
}

This caused:

• Extra white space above the footer

• Visual imbalance at the bottom of the page

• Noticeable inconsistency in dark mode UI

• Footer appearing detached from the main content

✅ Solution Implemented :

• Removed margin-top: 4% from the footer styles

🧪 How to Test :

• Run the keploy-docs website locally.

• Navigate to any documentation page.

• Scroll to the bottom of the page.

• Toggle between light and dark modes.

• Confirm that:

  No extra white space appears above the footer

  Footer aligns naturally with the content

Screenshots :

Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.

[Achanandhi-M]

LGTM