build(striker-ui): remove deprecated 'next export' and use recommended 'output: export'

striker-ui/next.config.js

@@ -1,5 +1,12 @@
-module.exports = {
+/**
+ * @type {import('next').NextConfig}
+ */
+const config = {
+  distDir: 'out',
+  output: 'export',
   pageExtensions: ['ts', 'tsx'],
   poweredByHeader: false,
   reactStrictMode: true,
 };
+
+module.exports = config;

striker-ui/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "build": "next build && next export",
+    "build": "next build",
     "dev": "next dev",
     "eslint:base": "eslint --config .eslintrc.json --ext js,jsx,ts,tsx --max-warnings=0",
     "lint": "npm run eslint:base -- . && npm run prettier:base -- --check",