Switch notebook editors to monaco (#239)

* Upgrade nteract packages and related dependencies to make new stateful-component work

* Switch to new monacoEditor

* Configure store using nteract mythic configuration

* Replace CodeMirror with Monaco editor in NotebookReadOnlyRenderer

* Reformat

* Upgrade d3 to latest to resolve d3-selection conflicts with nteract/data-explorer that broke D3ForceGraph

* Upgrade jupyterlab terminal widget to work with latest version of react. Upgrade jupyterlab services to include latest fix for websocket auth

* Update jest test snapshots

* Upgrade packages to fix build issues

* Remove comment

* Fix unit tests

* Fix unit test snapshot

* Remove useless @types/node-fetch

src/Explorer/Controls/NotebookGallery/InfoComponent/__snapshots__/InfoComponent.test.tsx.snap

@@ -13,7 +13,7 @@ exports[`InfoComponent renders 1`] = `
   <div
     className="infoPanelMain"
   >
-    <Memo(StyledIconBase)
+    <StyledIconBase
       className="infoIconMain"
       iconName="Help"
       styles={