[BUG] The documentation for `enableDebug` is incorrect, it should reference `enableDebugExceptions`

[MSNev]

As part of investigating the configuration for #2013 we identified that the documented enableDebug flag is not used during the initialization of the SDK and instead is using enableDebugExceptions

For previous released versions (v2.x) we should update the documentation to point out that this is called enableDebugExceptions, and for later releases we shoudl "consider" whether to use the enableDebug with a fallback to enableDebugExceptions.

As this is really a developer time (non-production) setting, I'm inclined to only support 1 value rather than 2 (from a code size perspective).

[celluj34]

IMO, v3 is a great time to remove it entirely (and put it in the migration notes).

[MSNev]

Yeh, for v3 I'm changing this to only support enableDebug, but I'll keep this issue open and we will patch v2.x to support both as one was defined in IConfiguration and the other in IConfig ☹️