Changes to Get Profile Overview

added the optional property usage/content/current_period to the response with the 200 status

added the optional property usage/content/period_model_breakdown to the response with the 200 status

added the required property usage/content/recent_activity/items/cached_tokens to the response with the 200 status

added the required property usage/content/recent_activity/items/credits_used to the response with the 200 status