Fix runtime errors: PerformanceObserver, localStorage, crypto.randomUUID, hydration issues, and linting errors

components/AnalyticsDashboard.tsx

@@ -4,9 +4,7 @@ import { useState, useEffect, useCallback } from 'react';
 import { motion } from 'framer-motion';
 import { 
   BarChart3, 
-  TrendingUp, 
   Eye, 
-  Heart, 
   Zap, 
   Globe,
   Activity,