Feat: Change in UI designs of the virtual assistant

[vansh-000]

Describe the feature

The Virtual Assistant page appears inconsistent with the overall design due to a mismatch in the color theme between the main page and the chatbot section.
Aligning the color scheme will create a more cohesive and visually appealing experience.

Add ScreenShots

Record

• I agree to follow this project's Contributing.md
• I'm a SWOC contributor
• I want to work on this issue

[github-actions]

Thank you for creating this issue! 🎉 @Ojas-Arora will look into it as soon as possible. In the meantime, please make sure to provide all the necessary details and context. If you have any questions or additional information, feel free to add them here. Your contributions are highly appreciated! 😊

You can also check our CONTRIBUTE.md for guidelines on contributing to this project.

[Ojas-Arora]

@vansh-000 Issue assigned to you.