Multiple autoDismiss are getting set

[sun-mota]

clearTimeout before setting a new one to avoid multiple effect

Whenever any attribute is changed, a new timer for autoHide gets set without clearing the previous one.

auro-toast/src/auro-toast.js

Lines 252 to 267 in bade5d3

	updated(changedProperties) {
	if (changedProperties.has('visible')) {
	this.handleSlotContent();
	}
	if (changedProperties.has('variant')) {
	clearTimeout(this.fadeOutTimer);
	}
	// do not auto dismiss for error toasts or if disableAutoHide is set
	if (this.visible && !this.disableAutoHide && this.variant !== 'error') {
	this.fadeOutTimer = setTimeout(() => {
	this.fadeOutToast();
	}, TIME_TIL_FADE_OUT);
	}
	}

Originally posted by @sun-mota in #67 (comment)