Enhances dashboard with new metrics and charts

Improves the dashboard with additional metrics and visualizations
to provide a more comprehensive overview of application usage and performance.

Adds new charts, including:
- Word cloud for category analysis
- Geographic map for user distribution (simulated data)
- Response time distribution chart

Refactors existing components for improved clarity and reusability,
including the introduction of a generic `MetricCard` component.

Improves error handling and user feedback during data refresh and
session loading.

Adds recommended VSCode extensions for ESLint and Prettier.

package.json

@@ -8,6 +8,7 @@
     "build": "next build",
     "start": "next start",
     "lint": "next lint",
+    "lint:fix": "eslint --fix './**/*.{ts,tsx}'",
     "format": "prettier --write .",
     "prisma:generate": "prisma generate",
     "prisma:migrate": "prisma migrate dev",
@@ -15,12 +16,19 @@
   },
   "dependencies": {
     "@prisma/client": "^6.8.2",
+    "@types/d3": "^7.4.3",
+    "@types/d3-cloud": "^1.2.9",
+    "@types/leaflet": "^1.9.18",
     "@types/node-fetch": "^2.6.12",
     "bcryptjs": "^3.0.2",
     "chart.js": "^4.0.0",
+    "chartjs-plugin-annotation": "^3.1.0",
     "csv-parse": "^5.5.0",
+    "d3": "^7.9.0",
+    "d3-cloud": "^1.2.7",
     "i18n-iso-countries": "^7.14.0",
     "iso-639-1": "^3.1.5",
+    "leaflet": "^1.9.4",
     "next": "^15.3.2",
     "next-auth": "^4.24.11",
     "node-cron": "^4.0.6",
@@ -28,18 +36,24 @@
     "react": "^19.1.0",
     "react-chartjs-2": "^5.0.0",
     "react-dom": "^19.1.0",
+    "react-leaflet": "^5.0.0",
     "tailwindcss": "^4.1.7"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.3.1",
+    "@eslint/js": "^9.27.0",
     "@tailwindcss/postcss": "^4.1.7",
     "@types/bcryptjs": "^2.4.2",
     "@types/node": "^22.15.21",
     "@types/node-cron": "^3.0.8",
     "@types/react": "^19.1.5",
     "@types/react-dom": "^19.1.5",
+    "@typescript-eslint/eslint-plugin": "^8.32.1",
+    "@typescript-eslint/parser": "^8.32.1",
     "autoprefixer": "^10.4.0",
     "eslint": "^9.27.0",
     "eslint-config-next": "^15.3.2",
+    "eslint-plugin-prettier": "^5.4.0",
     "postcss": "^8.4.0",
     "prettier": "^3.5.3",
     "prisma": "^6.8.2",