WikimediaUI theme: Align TagItemWidget's close icon correctly
WikimediaUI theme: Align TagItemWidget's close icon correctly

Fix TagItemWidget's close icon position within the button.

Change-Id: I0033167b725235e05d110f7e125249f5ab7d39ae

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui