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/dashboard/dashboard.repository.ts

@@ -2,7 +2,7 @@ import { createChildLogger } from "@bete/shared/logger";
 import { getPool } from "../../shared/database/index.js";
 import type { ListUsersQuery } from "./dashboard.service.js";
 
-const logger = createChildLogger("dashboard.repository");
+const _logger = createChildLogger("dashboard.repository");
 
 export class DashboardRepository {
   async getStats() {