add contact us modal at footer popup/fix

[saadii00]

🛠️ Fixes Issue

Closes #211

👨‍💻 Description

• Briefly describe the feature or bug fix you've implemented.
  I have added a modal for contact us information which was redirecting to another page earlier.
• Highlight any major changes or added functionality.
  I have added a modal
• Mention how it enhances the project.
  It enhances to user experience as users dont have to go to another

📄 Type of Change

• [ X ] Bug fix (non-breaking change which fixes an issue)
• [ ✅ ] New feature (non-breaking change which adds functionality)
• [ X ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ X ] Documentation update (adds or updates related documentation)

📷 Screenshots/GIFs (if any)

Include screenshots or GIFs to demonstrate your changes

✅ Checklist

• [ ✅ ] I am a participant of GSSoC-ext.
• [ ✅ ] I have followed the contribution guidelines of this project.
• [ ✅ ] I have viewed deployment of my code.
• [ ✅ ] My changes generate no new warnings.
• [ X ] I have added documentation to explain my changes.

🤝 GSSoC Participation

• [ ✅ ] This PR is submitted under the GSSoC program.
• [ X ] I have taken prior approval for this feature/fix.

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Name	Status	Preview	Comments	Updated (UTC)
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