Upgrade the enable toggle from native checkbox to shadcn/ui Switch component
for better UX and UI consistency with settings page.
**Improvements**:
1. Use modern toggle UI (Switch) instead of traditional checkbox
2. Adopt the same layout pattern as settings page (ToggleRow style)
3. Add bordered container with proper spacing for better visual hierarchy
4. Maintain full accessibility support (aria-label)
**Layout changes**:
- Before: Simple label + checkbox horizontal layout
- After: Bordered container, label on left, Switch on right, vertically centered
be155c857e