- Fixed a bug causing Subcharts not to sync initially.
- added `scale_margin_top` and `scale_margin_bottom` parameters to the `price_scale` method.
- Added `price_line` and `price_label` parameters to `create_line`.
- Lowered the default margins of the chart.
- Upgraded to Lightweight Charts v4.0.1.
- Added a ‘hover’ item to the returning dictionary from subscribe_click.
- Markers and SubCharts no longer use a UUID for identification, but an 8 character string.