Merge from vscode a5cf1da01d5db3d2557132be8d30f89c38019f6c (#8525)

* Merge from vscode a5cf1da01d5db3d2557132be8d30f89c38019f6c

* remove files we don't want

* fix hygiene

* update distro

* update distro

* fix hygiene

* fix strict nulls

* distro

* distro

* fix tests

* fix tests

* add another edit

* fix viewlet icon

* fix azure dialog

* fix some padding

* fix more padding issues

extensions/notebook/package.json

@@ -457,7 +457,7 @@
     "@types/glob": "^7.1.1",
     "@types/js-yaml": "^3.12.1",
     "@types/mocha": "^5.2.5",
-    "@types/node": "^11.9.3",
+    "@types/node": "^12.11.7",
     "@types/request": "^2.48.1",
     "@types/rimraf": "^2.0.2",
     "@types/temp-write": "^3.3.0",