chore: update react-storybook (#595)

Author: Claudéric Demers

.storybook/theme.js

@@ -33,5 +33,5 @@ export default create({
   brandTitle: 'React Sortable HOC',
   brandUrl: 'https://github.com/clauderic/react-sortable-hoc',
   brandImage:
-    'https://d12c9k59mfk1gc.cloudfront.net/items/1T3k3f1s0v3K283t2W1s/react-sortable-hoc.svg',
+    'https://user-images.githubusercontent.com/1416436/54170652-dfd59d80-444d-11e9-9c51-658638c0454b.png',
 });

package.json

@@ -63,9 +63,9 @@
     "@babel/plugin-transform-runtime": "^7.2.0",
     "@babel/preset-env": "^7.2.3",
     "@babel/preset-react": "^7.0.0",
-    "@storybook/addon-options": "^5.0.1",
-    "@storybook/react": "^5.0.2",
-    "@storybook/theming": "^5.0.1",
+    "@storybook/addon-options": "^5.1.11",
+    "@storybook/react": "^5.1.11",
+    "@storybook/theming": "^5.1.11",
     "array-move": "^1.0.0",
     "autoprefixer": "^6.3.6",
     "babel-loader": "^8.0.5",
@@ -91,6 +91,7 @@
     "react-addons-test-utils": "^15.1.0",
     "react-dom": "^16.7.0",
     "react-infinite": "^0.13.0",
+    "react-inspector": "^3.0.2",
     "react-tiny-virtual-list": "^2.0.1",
     "react-virtualized": "^9.2.2",
     "react-window": "^1.6.2",