message: change the record button to stop, if recording
diff: @@ -7,9 +7,10 @@ const RecordButton = ActionButton.extend`
  margin: 10px;
  background-color: #EE4841;
  border-style: none;
  - border-radius: 50%;
  + border-radius: ${props => props.isActive ? "25%" : "50%"};
  position: relative;
  overflow: hidden;
  + transition: border-radius 250ms ease-out;
  &:hover {
  background-color: #F56660;
  