Fix ERR_UNKNOWN_FILE_EXTENSION by configuring ts-node loader for ESM

Co-authored-by: neSpecc <3684889+neSpecc@users.noreply.github.com>

Author: Copilot

nodemon.json

@@ -8,5 +8,8 @@
   "watch": [
     "**/*"
   ],
-  "ext": "ts,js,twig"
+  "ext": "ts,js,twig",
+  "execMap": {
+    "ts": "node --loader ts-node/esm"
+  }
 }

package.json

@@ -14,7 +14,7 @@
     "start": "concurrently \"yarn start-backend\" \"yarn build-frontend\"",
     "dev": "concurrently \"yarn start-backend\" \"yarn build-frontend:dev\"",
     "build-all": "yarn build-frontend && yarn build-backend",
-    "build-static": "ts-node src/backend/app.ts build-static -c docs-config.yaml -c docs-config.local.yaml",
+    "build-static": "node --loader ts-node/esm src/backend/app.ts build-static -c docs-config.yaml -c docs-config.local.yaml",
     "start-backend": "cross-env NODE_ENV=development npx nodemon --config nodemon.json src/backend/app.ts -c docs-config.yaml -c docs-config.local.yaml",
     "build-backend": "tsc && copyfiles -u 3 ./src/**/*.twig ./dist/backend/views && copyfiles -u 1 ./src/**/*.svg ./dist/",
     "build-frontend": "webpack --mode=production",