feat: enhance UI with Lucide icons across various components

- add logo
- Replaced emoji placeholders with Lucide icons in AITradersPage, CompetitionPage, EquityChart, Header, LoginPage, and RegisterPage for improved visual consistency.
- Updated button styles to include icons for actions like adding models and exchanges.
- Enhanced error and empty state displays with relevant icons to provide better user feedback.

web/package.json

@@ -8,22 +8,23 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "clsx": "^2.1.1",
+    "date-fns": "^4.1.0",
+    "lucide-react": "^0.552.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "zustand": "^5.0.2",
-    "swr": "^2.2.5",
     "recharts": "^2.15.2",
-    "date-fns": "^4.1.0",
-    "clsx": "^2.1.1"
+    "swr": "^2.2.5",
+    "zustand": "^5.0.2"
   },
   "devDependencies": {
     "@types/react": "^18.3.17",
     "@types/react-dom": "^18.3.5",
     "@vitejs/plugin-react": "^4.3.4",
-    "typescript": "^5.8.3",
-    "vite": "^6.0.7",
-    "tailwindcss": "^3.4.17",
+    "autoprefixer": "^10.4.20",
     "postcss": "^8.4.49",
-    "autoprefixer": "^10.4.20"
+    "tailwindcss": "^3.4.17",
+    "typescript": "^5.8.3",
+    "vite": "^6.0.7"
   }
 }