chore: update Next.js configuration and release workflow

- Modified Next.js configuration to conditionally apply raw-loader for markdown files only on the client side.
- Increased static page generation timeout to 300 seconds for larger builds.
- Enhanced GitHub Actions release workflow by adding a step to build the Next.js frontend, ensuring the 'out' directory exists post-build.
- Simplified the beforeBuildCommand in Tauri configuration to only include the build step.

next.config.ts

@@ -5,16 +5,26 @@ const nextConfig: NextConfig = {
   images: {
     unoptimized: true,
   },
-  webpack: (config) => {
-    config.module.rules.push({
-      test: /\.md$/,
-      use: 'raw-loader',
-    });
+  webpack: (config, { isServer }) => {
+    // Adiciona suporte para raw-loader apenas no cliente
+    if (!isServer) {
+      config.module.rules.push({
+        test: /\.md$/,
+        use: {
+          loader: 'raw-loader',
+          options: {
+            esModule: false,
+          },
+        },
+      });
+    }
     return config;
   },
   // Configuração Turbopack: objeto vazio silencia o erro
   // Turbopack ainda não suporta raw-loader, então usaremos webpack para builds
   turbopack: {},
+  // Aumenta timeout para builds grandes
+  staticPageGenerationTimeout: 300,
 };
 
 export default nextConfig;