Allow middle mouse button to trigger navigation suppression when clicking a tiddler link

Equivalent to holding control/command while clicking.

core/modules/widgets/link.js

@@ -95,7 +95,7 @@ LinkWidget.prototype.handleClickEvent = function (event) {
 		navigateFromNode: this,
 		navigateFromClientRect: { top: bounds.top, left: bounds.left, width: bounds.width, right: bounds.right, bottom: bounds.bottom, height: bounds.height
 		},
-		navigateSuppressNavigation: event.metaKey || event.ctrlKey
+		navigateSuppressNavigation: event.metaKey || event.ctrlKey || (event.button === 1)
 	});
 	event.preventDefault();
 	event.stopPropagation();