Default bar width on date axes should be smarter #6199
Description
Followup from plotly/plotly.py#3715 ... if I have a trace with a single bar in it and the x axis is datetime, then the width of that lonely bar ends up being like 1ms or something. This is never incorrect but also rarely the obviously right thing to do. A smarter behaviour would be to look at the "first non-zero date part" and make the bar that width, so:
2022-> 1 year2022-01-01-> 1 year2022-02-01-> 1 month2022-02-02-> 1 day2022-02-02 10:00:00-> 1 hour2022-02-02 10:05:00-> 1 minute2022-02-02 10:05:12-> 1 second