Add expand and fade-in animations to conditional form sections

Add smooth animations to form sections that appear when toggles are enabled, improving user experience with visual feedback.

Changes:
- Add expandFadeIn keyframe animation to Tailwind config
- Apply expand-fade-in animation to UserSettingsForm payment sections
- Apply expand-fade-in animation to LocationEditForm conditional fields
- Update account page HomeIcon color from green to white for consistency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

tailwind.config.ts

@@ -18,6 +18,9 @@ const config: Config = {
           600: '#2F6FEB',
         },
       },
+      animation: {
+        'expand-fade-in': 'expandFadeIn 0.3s ease-in-out forwards',
+      },
     },
     keyframes: {
       shimmer: {
@@ -37,6 +40,16 @@ const config: Config = {
           maxHeight: '200px',
         },
       },
+      expandFadeIn: {
+        '0%': {
+          opacity: '0',
+          transform: 'scaleY(0.95)',
+        },
+        '100%': {
+          opacity: '1',
+          transform: 'scaleY(1)',
+        },
+      },
     },
   },
   plugins: [