fix: #1435 Avoid double taps on buttons with tooltip on safari iOS

Due to an Safari Issue the first "mouseenter" event will block
the "click" event. This can be worked around by using the
"pointerenter" instead.

src/lib/utils/Popper.svelte

@@ -128,8 +128,8 @@
       ['focusin', showHandler, focusable],
       ['focusout', hideHandler, focusable],
       ['click', showHandler, clickable],
-      ['mouseenter', showHandler, hoverable],
-      ['mouseleave', hideHandler, hoverable]
+      ['pointerenter', showHandler, hoverable],
+      ['pointerleave', hideHandler, hoverable]
     ];
 
     if (triggeredBy) triggerEls = [...document.querySelectorAll<HTMLElement>(triggeredBy)];