Completely recreate Fifth Language website using modern React and Bootstrap

[Copilot]

This PR completely replaces the outdated Fifth programming language website with a modern, professional React-based application as requested in the issue.

What was changed

The entire website has been rebuilt from scratch using modern web technologies:

• Replaced Jekyll/static site with a React 19 + TypeScript application built with Vite
• Modern UI framework using Bootstrap 5 with Bootstrap Icons for responsive, professional styling
• Comprehensive content structure including Home, Documentation, Tutorials, News, and About pages
• Syntax highlighting with Prism.js specifically configured for Fifth language code examples
• GitHub Pages deployment with automated CI/CD workflow

Key features implemented

Modern Architecture

• React 19 with TypeScript for type safety and maintainability
• Vite for fast development and optimized production builds
• React Router for client-side navigation
• Bootstrap 5 for responsive design across all devices

Content-Rich Pages

• Home: Hero section with language overview, feature highlights, and quick start guide
• Documentation: Comprehensive language reference with syntax examples, compiler architecture, and RDF integration details
• Tutorials: Step-by-step learning materials from beginner to advanced with hands-on code examples
• News: Development updates, roadmap, and community resources
• About: Project vision, technical details, and contribution guidelines

Professional Polish

• Custom Fifth language icon and branding
• Syntax-highlighted code examples throughout
• Responsive navigation with active page indicators
• Professional footer with community links
• SEO-optimized metadata and structure

Example of the new syntax highlighting

// Fifth example - Working with RDF triples
namespace example {
    import System;
    import RDF;
    
    function main() {
        var graph = new Graph();
        graph.add(<john> <knows> <mary>);
        
        var results = graph.query(?person <knows> ?friend);
        foreach (var result in results) {
            Console.WriteLine($"{result.person} knows {result.friend}");
        }
    }
}

The website now properly showcases Fifth as a modern programming language for RDF knowledge graphs, with the professional appearance and comprehensive documentation expected from a programming language website.

Fixes #1.

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Pull Request Overview

This PR completely recreates the Fifth programming language website as a modern React-based application, replacing the existing Jekyll static site. The new website features comprehensive documentation, interactive tutorials, and professional UI design using React 19, TypeScript, and Bootstrap 5.

Key changes include:

• Complete migration from Jekyll to React 19 + TypeScript + Vite stack
• Implementation of responsive design with Bootstrap 5 and React Router navigation
• Addition of syntax highlighting for Fifth language code examples using Prism.js

Reviewed Changes

Copilot reviewed 23 out of 30 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package.json	Defines React 19 application dependencies and build scripts
vite.config.ts	Vite configuration for React development and building
src/App.tsx	Main application component with routing setup
src/main.tsx	Application entry point with React 19 and router initialization
src/pages/*.tsx	Five main pages (Home, Documentation, Tutorials, News, About) with content
src/components/*.tsx	Reusable components for navigation, footer, and code highlighting
.github/workflows/deploy.yml	GitHub Actions workflow for automated deployment
index.html	New HTML entry point replacing Jekyll structure

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[Copilot]

The import { globalIgnores } from 'eslint/config' is incorrect. This export doesn't exist in the eslint package. The line should be removed as globalIgnores is used as a function call on line 9.

Suggested change

import { globalIgnores } from 'eslint/config'