Enhance dashboard with analytics, streamline review display, and update pages

Refactors frontend to remove Sidebar component from pages and adds analytics chart icon.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: d5daeb82-020f-4ea2-a54f-9097efac2a63
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/4119c42c-9857-448a-8c94-20be047485ba/37bc4b7a-604b-4a9a-897d-deb11f1ec6df.jpg