fix(VListItem, VListGroup): detect input interactions

[J-Sek]

Description

fixes #20523

Markup:

<template>
  <v-treeview :items="items" selectable>
    <template #title="{item}">
      <v-text-field placeholder="click or type something with spaces" />
    </template>
  </v-treeview>
</template>

<script>
  export default {
    data: () => ({
      items: [
        {
          id: 1,
          title: 'Applications :',
          children: [
            { id: 2, title: 'Calendar : app' },
            { id: 3, title: 'Chrome : app' },
            { id: 4, title: 'Webstorm : app' },
          ],
        },
      ],
    }),
  }
</script>