Bump @babel/plugin-proposal-class-properties from 7.4.0 to 7.4.4 (#6686)
Bump @babel/plugin-proposal-class-properties from 7.4.0 to 7.4.4 (#6686)

Bump @babel/plugin-proposal-class-properties from 7.4.0 to 7.4.4
storybooks/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/storybook,storybooks/react-storybook,kadirahq/react-storybook,storybooks/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/storybook