Update element.py: box_model, size, location, rect, get_attribute, is_displayed, is_enabled, is_selected, is_clickable

Example: - box_model: `BoxModel(content=Quad([202, 679.234375, 710, 679.234375, 710, 700.703125, 202, 700.703125]), padding=Quad([189, 669.234375, 723, 669.234375, 723, 710.703125, 189, 710.703125]), border=Quad([188, 668.234375, 724, 668.234375, 724, 711.703125, 188, 711.703125]), margin=Quad([188, 668.234375, 724, 668.234375, 724, 711.703125, 188, 711.703125]), width=536, height=43, shape_outside=None) ` - size `{'height': 43, 'width': 536}` - location: `{'x': 202, 'y': 679.234375}` - rect: `{'top_left': {'x': 202, 'y': 679.234375}, 'bottom_right': {'x': 710, 'y': 700.703125}, 'width': 536, 'height': 43}` - get_attribute: `gameUserId3` - is_displayed: `True` - is_enabled: `True` - is_selected: `False` - is_clickable: `True`