fixed build errors

package-lock.json

@@ -8,6 +8,7 @@
       "name": "ml4e",
       "version": "0.1.0",
       "dependencies": {
+        "@fontsource-variable/orbitron": "^5.2.8",
         "@react-three/drei": "^10.7.6",
         "@react-three/fiber": "^9.3.0",
         "@react-three/postprocessing": "^3.0.4",
@@ -240,6 +241,15 @@
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
+    "node_modules/@fontsource-variable/orbitron": {
+      "version": "5.2.8",
+      "resolved": "https://registry.npmjs.org/@fontsource-variable/orbitron/-/orbitron-5.2.8.tgz",
+      "integrity": "sha512-Jazvuj2cgBq663z1j/+JdwH2ztqQ8RaGhJgdHYphFbtfowiFaR74R8UgZl7x1skbXmUMWWH1jXfG7mrYFIYK0A==",
+      "license": "OFL-1.1",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
     "node_modules/@humanfs/core": {
       "version": "0.19.1",
       "resolved": "https://registry.npmjs.org/@humanfs/core/-/core-0.19.1.tgz",