Handle click events in Plotly and support RSeQC single_sample_plot

[vladsavelyev]

Explore if we can also support the highcharts's click_func events like here:
https://github.com/MultiQC/MultiQC/blob/main/multiqc/modules/rseqc/junction_saturation.py#L72C10-L72C20
https://github.com/MultiQC/MultiQC/blob/main/multiqc/modules/rseqc/assets/js/multiqc_rseqc.js

Or ideally, we could generalize this without and implement this stuff in Python without custom JavaScript. The first step would be having first-class plot views, and then a line plot could handle more nested data structures and split them up into such subplots automatically.