🧑‍💻 Improve env variables type safety and management (#718)

Closes #679

apps/builder/next.config.mjs

@@ -0,0 +1,61 @@
+import { withSentryConfig } from '@sentry/nextjs'
+import { join, dirname } from 'path'
+import '@typebot.io/env/dist/env.mjs'
+import { configureRuntimeEnv } from 'next-runtime-env/build/configure.js'
+import { fileURLToPath } from 'url'
+
+const __filename = fileURLToPath(import.meta.url)
+
+const __dirname = dirname(__filename)
+
+configureRuntimeEnv()
+
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactStrictMode: true,
+  output: 'standalone',
+  transpilePackages: [
+    '@typebot.io/lib',
+    '@typebot.io/schemas',
+    '@typebot.io/emails',
+    '@typebot.io/env',
+  ],
+  i18n: {
+    defaultLocale: 'en',
+    locales: ['en', 'fr', 'pt', 'de'],
+  },
+  experimental: {
+    outputFileTracingRoot: join(__dirname, '../../'),
+  },
+  headers: async () => {
+    return [
+      {
+        source: '/(.*)?',
+        headers: [
+          {
+            key: 'X-Frame-Options',
+            value: 'SAMEORIGIN',
+          },
+        ],
+      },
+    ]
+  },
+}
+
+const sentryWebpackPluginOptions = {
+  silent: true,
+  release: process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_SHA + '-builder',
+}
+
+export default process.env.NEXT_PUBLIC_SENTRY_DSN
+  ? withSentryConfig(
+      {
+        ...nextConfig,
+        sentry: {
+          hideSourceMaps: true,
+          widenClientFileUpload: true,
+        },
+      },
+      sentryWebpackPluginOptions
+    )
+  : nextConfig