Remove white background on clipboard button; position icon

## What does this MR do?
Removes white background from clipboard button

## What are the relevant issue numbers?
Closes #19098 

## Screenshots (if relevant)
![Screen_Shot_2016-07-18_at_3.12.24_PM](/uploads/4a6a540e1a074e6cf89fb99be1b49f2d/Screen_Shot_2016-07-18_at_3.12.24_PM.png)
![Screen_Shot_2016-07-18_at_8.50.55_PM](/uploads/8c594b6f9a74095b194fe1f634eaf226/Screen_Shot_2016-07-18_at_8.50.55_PM.png)

See merge request !5335