Add icon for the recommended filters on the filters group screen

https://share.goabstract.com/63ab9710-848b-4a74-8abc-281e3d3b2c45

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![preview](https://user-images.githubusercontent.com/3413799/52844188-13562e00-3115-11e9-8ddf-3f2af883f462.png)

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