feat: update dependencies and improve dashboard functionality

- Added new dependencies for Next.js and lucide-react in pnpm-workspace.yaml.
- Refactored DashboardPage component to improve readability and error handling.
- Enhanced Header component to display error status with an alert icon.
- Updated MobileTabBar and Sidebar components to use a centralized tabs definition.
- Improved ChannelsView in dashboard-panel to handle channel fetching more cleanly.
- Fixed ActiveSpeaker type to use camelCase for userId.
- Updated MessagesPanel to handle guildId checks more gracefully.
- Adjusted API calls in dashboard and messages to align with backend expectations.
- Refined type definitions across various interfaces for consistency and clarity.

services/backend/src/modules/health/health.routes.ts

@@ -1,6 +1,6 @@
 import type { Router } from "express";
 import express from "express";
-import { collectDefaultMetrics, register } from "prom-client";
+import { collectDefaultMetrics } from "prom-client";
 import { handleHealthCheck, handleMetrics } from "./health.controller.js";
 
 // Initialize default Node.js runtime metrics (event loop lag, memory, GC, etc.)