Pattern: Use of multiple root nodes in template
Issue: -
This rule checks whether template contains single root element valid for Vue 2.
<!-- The root is text -->
<template>Lorem ipsum</template><!-- There are multiple root elements -->
<template>
<div>hello</div>
<div>hello</div>
</template><!-- The root element has `v-for` directives -->
<template>
<div v-for="item in items"/>
</template><!-- The root element is `<template>` or `<slot>` -->
<template>
<slot />
</template>