change(block-style): pass className coming from styling widgets into …

…style wrapper

- this way we receive the has--key--value classes on the wrappers divs
  with the class styled- type of block

src/StyleWrapper/StyleWrapperView.jsx

@@ -132,6 +132,7 @@ const StyleWrapperView = (props) => {
       customClass,
       theme,
       align,
+      props.className,
       {
         align,
         styled,