Tinro should rewrite links on auxclick event too

[mildred]

When clicking a link, tinro aitomatically prepend the link with #/ to ensure we stay on the same page. This works well except when middle-clicking. In that case, Tinro should listen to the auxclick event to perform the same task.

https://developer.mozilla.org/en-US/docs/Web/API/Element/auxclick_event

The current implementation:

tinro/src/router.js

Lines 62 to 81 in 32038e7

	function aClickListener(go){
	const h = e => {
	const a = e.target.closest('a[href]');
	const target = a && getAttr(a,'target',false,'_self');
	const ignore = a && getAttr(a,'tinro-ignore');
	const key = e.ctrlKey || e.metaKey || e.altKey || e.shiftKey;
	if(target == '_self' && !ignore && !key && a){
	const href = a.getAttribute('href').replace(/^\/#/,'');
	if(!/^\/\/|^#|^[a-zA-Z]+:/.test(href)) {
	e.preventDefault();
	go(href.startsWith('/') ? href : a.href.replace(window.location.origin,''));
	}
	}
	}
	addEventListener('click', h);
	return () => removeEventListener('click', h);
	}