Update prettier to latest. Remove tslint (#1641)

* Rev up prettier

* Reformat

* Remove deprecated tslint

* Remove call to tslint and update package-lock.json

src/Explorer/Panes/PublishNotebookPane/PublishNotebookPaneComponent.tsx

@@ -62,7 +62,7 @@ export const PublishNotebookPaneComponent: FunctionComponent<PublishNotebookPane
 
   const descriptionPara2 = `Would you like to publish and share "${FileSystemUtil.stripExtension(
     notebookName,
-    "ipynb"
+    "ipynb",
   )}" to the gallery?`;
 
   const options: ImageTypes[] = [ImageTypes.CustomImage, ImageTypes.Url];