chore(package): update @storybook/react to version 5.3.18

Closes #23

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "@storybook/addon-storyshots": "^5.3.18",
     "@storybook/addon-storyshots-puppeteer": "^5.3.18",
     "@storybook/addon-viewport": "^5.3.18",
-    "@storybook/react": "^4.0.2",
+    "@storybook/react": "^5.3.18",
     "babel-core": "^7.0.0-bridge.0",
     "babel-jest": "^23.6.0",
     "babel-loader": "^8.0.4",