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/discord-gateway/src/shared/database/schema.ts

@@ -2,7 +2,6 @@ import { pgAttachmentsTable, pgMessagesTable } from "@bete/shared";
 import {
   bigint as pgBigint,
   boolean as pgBoolean,
-  foreignKey as pgForeignKey,
   index as pgIndex,
   integer as pgInteger,
   jsonb as pgJsonb,