Support line splitting only once past print width for `jsdocNamedImportLineSplitting`

[juzerzarif]

I see that there is a (as yet undocumented - is this experimental?) config option called jsdocNamedImportLineSplitting. I think it would be nice if I could configure that option so that it only line splits import tags once they're past the print width.

/**
 * @import { ThingOne, ThingTwo } from 'some/module'
 */

/**
 * @import {
 *   ThingOne,
 *   ThingTwo,
 *   ThingThree,
 *   ThingFour,
 *   ThingFive
 * } from 'some/module'
 */