Issue #3476565: Make wrapping of last word in span optional

Closes #3476565

config/install/extlink.settings.yml

@@ -28,4 +28,5 @@ extlink_tel_label: '(link is a phone number)'
 extlink_use_font_awesome: false
 extlink_font_awesome_classes: {  }
 extlink_icon_placement: 'append'
+extlink_prevent_orphan: true
 whitelisted_domains: { }