Adding the UI for the scrollbar for more user experience !!

[SrijaVuppala295]

Scrollbar UI Improvement:

• Redesign the scrollbar to align with the project's theme, incorporating a modern, gradient color scheme.
• Ensure that the scrollbar is responsive across all devices and screen sizes.
• Adjust the text color of the scrollbar elements to enhance visibility and maintain a consistent aesthetic with the theme.

[BabbarRaghav]

@SrijaVuppala295 go ahead!!!