New slots for the chart menu
#custom-menu-before
#custom-menu-after
These new slots allow you to add custom actions directly into the built-in chart menu.
They are available for all components that include a chart menu.
<VueUiXy :dataset :config>
<template #custom-menu-before>
<button @click="doSomething">click</button>
</template>
<template #custom-menu-after>
<button @click="doSomethingElse">click</button>
</template>
</VueUiXy>