feat(ui): enhance dashboard animations with smooth bar fill and subtl…

[odanree]

Changes

Enhances the credit dashboard with smooth, professional animations and transitions:

Features

• Smooth bar fill animations - Percentage bars now smoothly animate from 0% to their target value on page load (1.2s)
• Subtle shimmer effect - A gentle, slow-moving shimmer accent across filled percentage bars (20s cycle)
• Staggered entrance animations - Cards and items fade in with cascading delays for visual polish
• Hover effects - Cards lift, transactions/categories shift with shadow depth for interactivity
• Improved visual feedback - Pulsing emoji icons and smooth transitions on all interactive elements

Technical Details

• All animations use CSS keyframes for optimal 60fps performance
• Animations are intentionally subtle to avoid distraction while enhancing perceived quality
• Mobile-responsive with reduced motion considerations

Related Issues

Closes #N/A

Screenshots

[View locally at http://localhost:5000 or on Render after merge]