Pglive

Adds tow new features:
1. min_range_width
This sets a minimum display range width to data points being plotted.
2. range_limit
This sets the upper and lower bound of display range to data points being plotted. This parameter can be used alongside with min_range_width. range_limit has a higher priority than min_range_width.

feat: add heatmap live plot

handling of multiple line ticks, better ticks handling in general - should fix most of the missing tick issues

fix: Exception on Removing Ignored Plot 40
feat: Adjusting text in vertical leading lines 41

fix: date conversion exceptions

Dropped support for Python 3.8
Added support for Python 3.12
Readme update