[REVIEW ONLY] Enable Cookies

Fix for https://github.com/adobe/brackets/issues/8582
is there any reason to store this information in a member var?  seems like we just need to create the array, add the  schemes we want cef to store cookies for and call `CefCookieManager::SetSupportedSchemes` and we're done. Or does the `CefCookieManager` not make a copy of the schemes in the array for some reason?