✨ Make new frontend available under /modern

👷 Start adding deploy config and CI

frontend/vite.config.js

@@ -4,9 +4,11 @@ import reactSvgPlugin from "vite-plugin-react-svg";
 
 // https://vitejs.dev/config/
 export default defineConfig({
+  base: process.env.NODE_ENV !== "production" ? "/" : "/static/modern/",
   plugins: [reactSvgPlugin({ defaultExport: "component" })],
   define: {
-    __DEV__: process.env.NODE_ENV !== "prodution",
+    __DEV__: process.env.NODE_ENV !== "production",
   },
   envDir: "..",
+  build: { outDir: "../static/modern" },
 });