Package extension-manager depends on coreutils

packages/extensionmanager/package.json

@@ -36,6 +36,7 @@
   },
   "dependencies": {
     "@jupyterlab/apputils": "^2.0.0",
+    "@jupyterlab/coreutils": "^4.0.0",
     "@jupyterlab/services": "^5.0.0",
     "@jupyterlab/ui-components": "^2.0.0",
     "@lumino/messaging": "^1.3.3",

packages/extensionmanager/tsconfig.json

@@ -14,6 +14,9 @@
     },
     {
       "path": "../ui-components"
+    },
+    {
+      "path": "../coreutils"
     }
   ]
 }