Playground UI/Ux Issues

[siddharthlatest]

Porting from https://github.com/appbaseio/reactivesearch/issues/148.

I'm submitting a ...

• [ ] bug report
• [ ] feature request
• [x] other

Related to UI/Ux of playground stories.

• [x] RangeSlider and DynamicRangeSlider story: Use a different dataset or different field where histogram has an interesting distribution of values.
• [x] ReactiveList uses a really bland UI.
• [x] With customIcon story: Use a car icon here.
• [x] autosuggest should have no camel cases
• [x] MultiDropdownRange: Filter shows on the right side panel: It should show above the filter component
• [x] DataPicker is missing a story for selecting an initial month.
• [x] Set maxWidth / outer container to make the story components look good.
• [ ] RangeSlider show native tooltip on slider handles (add in library)