Add dashboard header UI improvemenEnhanced the Dashboard Header UI with a cleaner and more modern design using improved spacing, gradients, shadows, hover effects, and responsive styling.ts and environment setup

[Alakh-gupta]

Summary

Enhanced the Dashboard Header UI with a cleaner and more modern design using improved spacing, gradients, shadows, hover effects, and responsive styling. Updated the component to better support theme variables and improve overall user experience.

Closes #<617>

Type of Change

• UI enhancement
• Refactor / code cleanup

Changes Made

• Improved dashboard header styling and responsiveness
• Added modern card layout with shadows and rounded corners
• Enhanced button and icon hover animations
• Improved theme compatibility using CSS variables
• Updated spacing and typography for better readability
• Added cleaner controls section styling

How to Test

1. Run the development server using npm run dev

2. Open http://localhost:3000

3. Navigate to the dashboard page

4. Verify:

   • Updated header UI appears correctly
   • Hover effects work smoothly
   • Theme colors adapt properly in light/dark mode
   • Responsive layout works on smaller screens

Screenshots (if UI change)

Checklist

• Linked issue in summary
• No TypeScript errors
• Self-reviewed the changes
• UI tested locally

[vercel]

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[github-actions]

GSSoC Label Checklist 🏷️

@Priyanshu-byte-coder — please apply the appropriate labels before merging:

Difficulty (pick one):

• level:beginner — 20 pts
• level:intermediate — 35 pts
• level:advanced — 55 pts
• level:critical — 80 pts

Quality (optional):

• quality:clean — ×1.2 multiplier
• quality:exceptional — ×1.5 multiplier

Validation (required to score):

• gssoc:approved — counts for points
• gssoc:invalid / gssoc:spam / gssoc:ai-slop — does not score

Type labels (type:*) are auto-detected from files and title. Review and adjust if needed.
Points formula: (difficulty × quality_multiplier) + type_bonus

[Priyanshu-byte-coder]

CSS variable usage looks correct — good work there. One issue blocking merge:

Inconsistent indentation: The JSX inside return ( is indented at 2 spaces instead of 4 spaces (the codebase standard), and the closing ); and } are at column 0. This makes the diff messy and will cause issues for future contributors editing the same file. Please re-indent the entire return ( block consistently.