bump yarn lock after gatsby version updates

platform/ui/package.json

@@ -29,11 +29,11 @@
   "dependencies": {
     "classnames": "^2.2.6",
     "docz": "^2.2.0",
-    "gatsby": "2.19.24",
+    "gatsby": "2.22.19",
-    "gatsby-plugin-postcss": "^2.1.20",
+    "gatsby-plugin-postcss": "2.3.3",
-    "gatsby-plugin-react-svg": "^3.0.0",
+    "gatsby-plugin-react-svg": "3.0.0",
-    "gatsby-plugin-sass": "^2.1.28",
+    "gatsby-plugin-sass": "2.3.3",
-    "gatsby-theme-docz": "^2.2.0",
+    "gatsby-theme-docz": "2.3.1",
     "moment": "^2.24.0",
     "node-sass": "^4.13.1",
     "prop-types": "^15.7.2",

platform/ui/src/contextProviders/DragAndDropProvider.jsx

@@ -1,9 +1,12 @@
 import React from 'react';
-import { DndProvider } from "react-dnd";
+import PropTypes from 'prop-types';
+import { DndProvider } from 'react-dnd';
 import HTML5Backend from 'react-dnd-html5-backend';
 import TouchBackend from 'react-dnd-touch-backend';
 
-const isTouchDevice = typeof window !== `undefined` && !!('ontouchstart' in window || navigator.maxTouchPoints);
+const isTouchDevice =
+  typeof window !== `undefined` &&
+  !!('ontouchstart' in window || navigator.maxTouchPoints);
 
 /**
  * Relevant:
@@ -13,7 +16,7 @@ const isTouchDevice = typeof window !== `undefined` && !!('ontouchstart' in wind
  * Docs:
  * http://react-dnd.github.io/react-dnd/docs/api/drag-drop-context
  */
-export default function DragAndDropProvider({children}) {
+function DragAndDropProvider({ children }) {
   const backend = isTouchDevice ? TouchBackend : HTML5Backend;
   const opts = isTouchDevice ? { enableMouseEvents: true } : {};
 
@@ -23,3 +26,9 @@ export default function DragAndDropProvider({children}) {
     </DndProvider>
   );
 }
+
+DragAndDropProvider.propTypes = {
+  children: PropTypes.any,
+};
+
+export default DragAndDropProvider;