Add sliding sync support and change font to SF Pro Display

- Enable sliding sync in config.json with matrix.org proxy
- Update font from InterVariable to SF Pro Display
- Add sliding sync state management with Jotai atoms
- Create bridge between sliding sync and existing room list atoms
- Add sliding sync settings UI in General settings
- Implement purple theme with gradient enhancements
- Add synchronization status display for sliding sync
- Update client initialization to support sliding sync

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

simple-server.js

@@ -0,0 +1,63 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = 4000;
+const DIST_DIR = path.join(__dirname, 'dist');
+
+const server = http.createServer((req, res) => {
+  console.log(`${req.method} ${req.url}`);
+  
+  // Serve index.html for all routes (SPA routing)
+  const filePath = req.url === '/' ? 
+    path.join(DIST_DIR, 'index.html') : 
+    path.join(DIST_DIR, req.url);
+  
+  // Check if file exists
+  fs.access(filePath, fs.constants.F_OK, (err) => {
+    if (err) {
+      // File doesn't exist, serve index.html for SPA routing
+      const indexPath = path.join(DIST_DIR, 'index.html');
+      fs.readFile(indexPath, (err, data) => {
+        if (err) {
+          res.writeHead(500);
+          res.end('Error loading index.html');
+          return;
+        }
+        res.writeHead(200, { 'Content-Type': 'text/html' });
+        res.end(data);
+      });
+      return;
+    }
+    
+    // File exists, serve it
+    const ext = path.extname(filePath);
+    const contentType = {
+      '.html': 'text/html',
+      '.js': 'application/javascript',
+      '.css': 'text/css',
+      '.json': 'application/json',
+      '.png': 'image/png',
+      '.jpg': 'image/jpeg',
+      '.ico': 'image/x-icon',
+      '.svg': 'image/svg+xml',
+      '.woff2': 'font/woff2',
+      '.ttf': 'font/ttf',
+      '.wasm': 'application/wasm'
+    }[ext] || 'application/octet-stream';
+    
+    fs.readFile(filePath, (err, data) => {
+      if (err) {
+        res.writeHead(500);
+        res.end('Error loading file');
+        return;
+      }
+      res.writeHead(200, { 'Content-Type': contentType });
+      res.end(data);
+    });
+  });
+});
+
+server.listen(PORT, () => {
+  console.log(`Server running at http://localhost:${PORT}/`);
+});