Adapt code and doc for plotly.js 1.52

[emmanuelle]

From https://github.com/plotly/plotly.js/releases/tag/v1.52.0

Code

• adapt px code for legend titles use legend titles in PX #2051
• adapt px code for choropleth geojson
• adapt px code for choropleth+mapbox featureidkey
• add discrete color mode to px choropleth
• adapt px code for choropleth fitbounds
• decide what values of uniformtext go into the templates postponed
• px box quartile methods arg? postponed

Doc

• legend titles in legend tutorial added example with legend title #2048
• quartile-computing algorithm and "pre-computed" q1/median/q3 input signature for Box traces @jdamiba
• geojson geometries in choropleth and scattergeo traces
• geo.visible shortcut attribute
• uniformtext example in tutorials on concerned traces (+ more on a different, more central page??)

Emma:

• showlegend in various places
• insidetextorientation for pie and sunburst text orientation for pie and sunburst: doc #2050
• intensitymode to allow cell intensity values in mesh3d traces doc example with intensitymode for mesh3d #2052
• expand isosurface/streamtube/volume tutorials
• notifyOnLogging mode in config AND in troubleshooting

[archmoj]

Wondering these two changes could be noted as well:

• Improve sunburst and treemap click events behavior in Improve sunbust and treemap click events behavior plotly.js#4454
• Improve attribute description of sunburst/treemap outsidetextfont in Improve description of sunburst/treemap outsidetextfont plotly.js#4463

[nicolaskruchten]

@archmoj we could... in which Python doc pages do you think these could go?

[archmoj]

https://plot.ly/python/sunburst-charts/
https://plot.ly/python/treemaps/
E.g. mentioning plotly_sunburstclick and plotly_treemapclick events is important.

[nicolaskruchten]

Unfortunately there's no way to show this in static Python docs... this would have to be done in currently-non-existent Dash docs that show dynamic Plotly behaviour...

[nicolaskruchten]

OK, this one is "done enough" for the release announcement, we can always add more later :)