refactor: standardize code formatting across components and utilities

- Updated formatting in SiteFooter and SiteHeader components for consistency.
- Refactored Badge, Button, Card, Separator components to improve readability.
- Enhanced markdown parsing logic in announcements and markdown utility functions.
- Adjusted ESLint configuration for better code quality checks.
- Added biome.json for BiomeJS configuration.
- Updated package.json and configuration files for improved dependency management.

next.config.ts

@@ -1,8 +1,8 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  output: "export",
-  trailingSlash: true,
+	output: "export",
+	trailingSlash: true,
 };
 
 export default nextConfig;