chore: update storybook (#1184)

Fixes issue described in storybookjs/storybook#3313

Author: rrjoson

package.json

@@ -67,8 +67,8 @@
     "@4c/rollout": "^1.2.0",
     "@babel/cli": "^7.1.0",
     "@babel/core": "^7.1.5",
-    "@storybook/addon-actions": "^3.4.11",
-    "@storybook/react": "3.4.11",
+    "@storybook/addon-actions": "^4.1.7",
+    "@storybook/react": "^4.1.7",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
     "babel-jest": "^23.6.0",

stories/Calendar.js

@@ -1,4 +1,6 @@
-import { storiesOf, action } from '@storybook/react'
+import { storiesOf } from '@storybook/react'
+import { action } from '@storybook/addon-actions'
+
 import moment from 'moment'
 import React from 'react'
 

stories/DragAndDrop.js

@@ -1,5 +1,6 @@
 import React from 'react'
-import { storiesOf, action } from '@storybook/react'
+import { storiesOf } from '@storybook/react'
+import { action } from '@storybook/addon-actions'
 
 import { events, Calendar, DragAndDropCalendar } from './helpers'
 import customComponents from './helpers/customComponents'

stories/Timeslots.js

@@ -1,4 +1,5 @@
-import { storiesOf, action } from '@storybook/react'
+import { storiesOf } from '@storybook/react'
+import { action } from '@storybook/addon-actions'
 import moment from 'moment'
 import React from 'react'
 

stories/helpers/customComponents.js

@@ -1,5 +1,5 @@
 import React from 'react'
-import { action } from '@storybook/react'
+import { action } from '@storybook/addon-actions'
 
 const customComponents = {
   dateCellWrapper: dateCellWrapperProps => {