Update app.py

app.py

@@ -3,9 +3,8 @@ try:
     from dotenv import load_dotenv
 except ImportError:
     os.system("pip install -e .")
-    from dotenv import load dotenv
-os.system('pip install -e third_party/voxelize/.')
-os.system('pip install -e .')
+    os.system('pip install -e third_party/voxelize/.')
+    from dotenv import load_dotenv
 
 import torch
 import trimesh