fix:mobile-ui-responsiveness

[Pvsaint]

feat: Add mobile responsiveness to Receive and Send components

• Made Receive and Send components fully responsive for mobile devices
• Components now scale properly from 320px (phones) to desktop screens
• Improved touch targets and text sizing for better mobile UX
• Added responsive form layout (stacked on mobile, side-by-side on desktop)
• Enhanced text truncation for long addresses and recipient names
• Maintained all existing functionality
• Fixed background colors, and styling
• Used mobile-first approach with proper container constraints

Components now provide optimal experience across all screen sizes while preserving the original design and color scheme.

closes #59