Add translation for uploading 3D images

backend/pt/resource.json

@@ -52,6 +52,8 @@
         "delete_question": "Voce est\u00e1 prestes a excluir uma refer\u00eancia do objeto",
         "delete_no": "N\u00e3o, foi acidentalmente ( voltar) ",
         "delete_yes": "Sim, continue adiante",
-        "preview": "Pr\u00e9-visualiza\u00e7\u00e3o"
+        "preview": "Pr\u00e9-visualiza\u00e7\u00e3o",
+        "3d_object": "3D Object",
+        "upload_3d_object": "Upload 3D object"
     }
 }