resolve todos in website

.eslintrc.json

@@ -210,6 +210,18 @@
           }
         ]
       }
+    },
+    {
+      "files": ["core/**/*.ts"],
+      "rules": {
+        "no-restricted-syntax": [
+          "error",
+          {
+            "selector": "ExportDefaultDeclaration",
+            "message": "Default exports are forbidden. Use named exports instead."
+          }
+        ]
+      }
     }
   ]
 }