Create Redux Middleware to Intercept 'fetch' Actions with Polymorphic Behavior

Create-a-redux-middleware-that-will-intercept-actions-with-sufix-"fetch"-and-have-polimorphic-behavior:-checks-specific-slice-for-timestamp-field.-If-timestamp-is-lower-than-15-min,-return-slice-data.-Otherwise,-fetches-endpoint,-and-dispatch-to-redux-reducer-to-update-store