feat: integrate monaco editor

[Sandijigs]

Close issue #17

Summary

This PR integrates Monaco Editor into the Angular frontend, providing a professional code editing
experience for writing Rust smart contracts on the Stellar blockchain using the Soroban SDK.

Changes Made

Dependencies

• Added @materia-ui/ngx-monaco-editor@6.0.0 for Angular integration
• Added monaco-editor@0.52.2 for core editor functionality

Component Development

• Created standalone MonacoEditorComponent with full TypeScript interfaces
• Implemented ControlValueAccessor for seamless Angular forms integration
• Added SSR compatibility with isPlatformBrowser checks

  Configuration

• Updated angular.json to serve Monaco Editor assets from node_modules
• Configured asset paths for proper editor resource loading

UI Integration

• Added Monaco Editor to main application component
• Configured Rust language support with syntax highlighting
• Applied vs-dark theme for professional appearance
• Set editor height to 500px with disabled minimap

Content & Styling

• Included sample Soroban smart contract with proper syntax highlighting
• Added responsive CSS styling for different screen sizes
• Updated app layout to accommodate the editor component

Features

• ✅ Rust syntax highlighting and autocompletion
• ✅ Professional dark theme interface
• ✅ Responsive design for all screen sizes
• ✅ Sample Stellar smart contract included
• ✅ Clean, lint-free TypeScript code

[Sandijigs]

@salazarsebas please help review and merge this issue

[Sandijigs]

@salazarsebas please help review and merge this issue

[salazarsebas]

LGTM