feat: implement comprehensive chat system with user presence management, notification handling, and avatar integration; enhance UI components for improved user experience

apps/web/package.json

@@ -28,12 +28,17 @@
   },
   "dependencies": {
     "@convex-dev/better-auth": "^0.9.6",
+    "@dicebear/collection": "^9.2.4",
+    "@dicebear/core": "^9.2.4",
+    "@internationalized/date": "^3.10.0",
     "@mmailaender/convex-better-auth-svelte": "^0.2.0",
     "@sgse-app/backend": "*",
     "@tanstack/svelte-form": "^1.19.2",
     "better-auth": "1.3.27",
     "convex": "^1.28.0",
     "convex-svelte": "^0.0.11",
+    "date-fns": "^4.1.0",
+    "emoji-picker-element": "^1.27.0",
     "jspdf": "^3.0.3",
     "jspdf-autotable": "^5.0.2",
     "zod": "^4.0.17"