function getPopperClientRect(popperOffsets) {
  var offsets = Object.assign({}, popperOffsets)
  offsets.right = offsets.left + offsets.width
  offsets.bottom = offsets.top + offsets.height
  return offsets
}
Given the popper offsets, generate an output similar to getBoundingClientRect
@function
@ignore
@argument {Object} popperOffsets
@returns {Object} ClientRect like output