Add @flow on all stories

src/components/base/Box/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 
 import { select, boolean, number } from '@storybook/addon-knobs'

src/components/base/Button/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import { storiesOf } from '@storybook/react'
 

src/components/base/Checkbox/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import { storiesOf } from '@storybook/react'
 import { boolean } from '@storybook/addon-knobs'

src/components/base/GrowScroll/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import { storiesOf } from '@storybook/react'
 import { boolean } from '@storybook/addon-knobs'

src/components/base/Input/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import { storiesOf } from '@storybook/react'
 

src/components/base/Modal/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React, { Fragment } from 'react'
 import { storiesOf } from '@storybook/react'
 import { boolean } from '@storybook/addon-knobs'

src/components/base/Radio/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import { storiesOf } from '@storybook/react'
 import { boolean } from '@storybook/addon-knobs'

src/components/base/Search/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 import PropTypes from 'prop-types'
 import { storiesOf } from '@storybook/react'

src/components/base/Tabs/stories.js

@@ -1,3 +1,5 @@
+// @flow
+
 import React from 'react'
 
 import { number } from '@storybook/addon-knobs'