move dependencies around (#7808)

extensions/notebook/package.json

@@ -405,8 +405,6 @@
   },
   "dependencies": {
     "@jupyterlab/services": "^3.2.1",
-    "@types/js-yaml": "^3.12.1",
-    "@types/rimraf": "^2.0.2",
     "decompress": "^4.2.0",
     "error-ex": "^1.3.1",
     "fast-glob": "^3.0.4",
@@ -423,9 +421,11 @@
     "@types/decompress": "^4.2.3",
     "@types/fs-extra": "^5.0.0",
     "@types/glob": "^7.1.1",
+    "@types/js-yaml": "^3.12.1",
     "@types/mocha": "^5.2.5",
     "@types/node": "^11.9.3",
     "@types/request": "^2.48.1",
+    "@types/rimraf": "^2.0.2",
     "@types/temp-write": "^3.3.0",
     "@types/uuid": "^3.4.5",
     "assert": "^1.4.1",