Every POIs knob with its kind, description, options and, where one value holds everywhere, its
default. Static data, readable with no map loaded.
Remarks
A knob is a plain display value in POIsModuleConfig, at the path its id names: whether
POIs show, and which categories. Not knobs: events. How the POIs look — size, zoom, label
colours, micro markers — is the pois.*StylingModule knobs'.
Every POIs knob with its kind, description, options and, where one value holds everywhere, its default. Static data, readable with no map loaded.