feat(ReadMore): Add ability to access state of more button visiblity (#599)
feat(ReadMore): Add ability to access state of more button visiblity (#599)

* feat(ReadMore): Add ability to access state of button display

There's currently no way to know if the more button is being displayed or not. I've got an analytics
requirement to find out if users are reading the text so am adding this prop to expose whether the
button is being displayed

* fix(ReadMore): Rename prop

seek-oss/seek-style-guide