dict component id passed to clientside callbacks is object instead of string

[sdementen]

When passing an Input with the component_property being "id" and the component_id referring to a dict (instead of a string), the javascript function received an object (the id dict) and not the stringified/jsonified id. This makes it difficult to use.

See here https://community.plotly.com/t/clientside-callback-with-pattern-matching/45657/2 for the required workaround in javascript

[nicolaskruchten]

I'll move this to the Dash repo to get the right folks looking at it :)