feat(react): allow user provided reportError func

[StaberindeZA]

Because:

• We should allow users the ability to provide a reportError function.

This commit:

• Adds a class property, reportError, to ReactLocalization that allows
  consumers to provide a function on initialization to report errors.
  By default the errors will console.warn.

Closes: #411

[eemeli]

When @stasm originally suggested using a provider prop for this, the code was structured differently, and that may have made more sense. Now, all of the error reporting calls are made from within ReactLocalization, so really the control should be via an argument of its constructor, rather than as a side effect of including it in a provider. Also, why make it a boolean rather than a function accepting an error argument?

[StaberindeZA]

When @stasm originally suggested using a provider prop for this, the code was structured differently, and that may have made more sense. Now, all of the error reporting calls are made from within ReactLocalization, so really the control should be via an argument of its constructor, rather than as a side effect of including it in a provider. Also, why make it a boolean rather than a function accepting an error argument?

Thank you for the quick reply and comments. Hmm, I did not notice the age of the issue. 😅 Your suggestions make sense.

No specific reason for the boolean. For some reason when I initially read the issue, I missed some comments, and had in my mind that the ask was for an on/off toggle. Agreed though the function is better, and I've made the changes.

[eemeli]

Much better! One small change, and this should be good to merge.