use copy icon for console button (#3957)
use copy icon for console button (#3957)

* use copy icon for console button

* remove blue color

Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,switchinnovations/pxt,playi/pxt,switch-education/pxt,playi/pxt,playi/pxt,switch-education/pxt,switch-education/pxt,Microsoft/pxt,Microsoft/pxt,switchinnovations/pxt,playi/pxt,Microsoft/pxt