Client-side application for the JSON-RPC Viewer.

• index.html - Main HTML template
• style.css - Custom CSS styles and responsive design
• app.js - Application entry point and initialization

• Responsive design with TailwindCSS
• Modular JavaScript architecture
• Custom scrollbars and animations
• Mobile-friendly button layouts

The frontend uses ES6 modules and imports shared components from /shared/. All JavaScript is vanilla ES6+ with no build step required.