Changes to List text presets

added the required property presets/items/style/letterSpacing to the response with the 200 status

added the required property presets/items/style/backgroundPadding to the response with the 200 status

added the required property presets/items/style/outline to the response with the 200 status

added the new edit_conflict enum value to the error response property for the response status 400

added the new edit_conflict enum value to the error response property for the response status 401

added the new edit_conflict enum value to the error response property for the response status 403

added the new edit_conflict enum value to the error response property for the response status 404

added the new edit_conflict enum value to the error response property for the response status 409

added the new edit_conflict enum value to the error response property for the response status 429

added the new edit_conflict enum value to the error response property for the response status 500

added the new edit_conflict enum value to the error response property for the response status 501

added the new edit_conflict enum value to the error response property for the response status 503

endpoint added