docs: Create State-based Styling Example Page (Hover/Focus/Disabled)

[anilcancakir]

Description

Create an example page showcasing hover, focus, and disabled state styling with WAnchor.

Features to Showcase

• WAnchor usage with onTap, onLongPress, onDoubleTap
• Hover states: hover:bg-{color}, hover:text-{color}
• Focus states: focus:bg-{color}, focus:text-{color}
• Disabled states: disabled:bg-{color}, disabled:text-{color}
• Combining multiple state modifiers
• Interactive button examples