Document client-side configuration properties

[kmaida]

Document client-side configuration properties

Description

We don't appear to document the properties that can be passed to a client-side FusionAuth provider all in one place. I had to read the source code for the TS client library and front-end SDKs to figure out what all the available properties were. This is unideal; we really need to have the full list of properties documented somewhere they are easy to find (not buried in individual front-end quickstarts).