popover.js - memory leak

Describe the bug
popover.js - eventListeners added mutiple times

 show() {
   ...
  modifiers: [
                ...options.modifiers,
                { name: 'eventListeners', enabled: true },  // concatenation at each call
            ]

options.modifiers is an array, so the above code keep on adding new object at each call of show().

The same mistake is in hide() function.

You should change it to something like that:

function enableListeners(modifiers: Modifier<any, any>[], value: boolean) {
   const modifier = modifiers.find((x) => x.name === 'eventListeners');
   if (!modifier) return [...modifiers, { name: 'eventListeners', enabled: open }];
   modifier.enabled = value;
   return modifiers;
}

show() {
   ...
   modifiers: enableListeners(options.modifiers)
   ...