Issue with arguments being typed as `any` in module configuration

[rchl]

With Sentry configuration like:

    sentry: {
        dsn: 'xxx',
        config: {
            beforeSend(event, hint) {
                return event;
            },
        },
    },

The event and hint arguments to beforeSend are typed as any. This is because of usage of DeepPartial:

type DeepPartial<T> = {
  [P in keyof T]?: T[P] extends Array<infer I>
    ? Array<DeepPartial<I>>
    : DeepPartial<T[P]>;
}

type DeepPartialModuleConfiguration = DeepPartial<ModuleConfiguration>

It doesn't happen when DeepPartial is not used.

FYI: @rtibaldo since you've introduced DeepPartial.