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/markdown-language-features/package.json

@@ -25,7 +25,9 @@
 		"onCommand:markdown.showSource",
 		"onCommand:markdown.showPreviewSecuritySelector",
 		"onCommand:markdown.api.render",
-		"onWebviewPanel:markdown.preview"
+    "onCommand:notebook.showPreview",
+		"onWebviewPanel:markdown.preview",
+		"onWebviewEditor:vscode.markdown.preview.editor"
 	],
 	"contributes": {
 		"commands": [
@@ -307,6 +309,18 @@
 		],
 		"markdown.previewScripts": [
 			"./media/index.js"
+		],
+		"webviewEditors": [
+			{
+				"viewType": "vscode.markdown.preview.editor",
+				"displayName": "(Experimental) VS Code Markdown Preview",
+				"priority": "option",
+				"selector": [
+					{
+						"filenamePattern": "*.md"
+					}
+				]
+			}
 		]
 	},
 	"scripts": {
@@ -327,14 +341,14 @@
 		"@types/highlight.js": "9.12.3",
 		"@types/lodash.throttle": "^4.1.3",
 		"@types/markdown-it": "0.0.2",
-		"@types/node": "^10.14.8",
+		"@types/node": "^12.11.7",
 		"lodash.throttle": "^4.1.1",
 		"mocha-junit-reporter": "^1.17.0",
 		"mocha-multi-reporters": "^1.1.7",
-		"ts-loader": "^4.0.1",
-		"typescript": "^3.3.1",
+		"ts-loader": "^6.2.1",
+		"typescript": "^3.7.2",
 		"vscode": "^1.1.10",
-		"webpack": "^4.1.0",
-		"webpack-cli": "^2.0.10"
+		"webpack": "^4.41.2",
+		"webpack-cli": "^3.3.0"
 	}
 }