feat(VTooltip): add eager prop support

[johnleider]

Motivation and Context

For performance reasons this should have eager support. Tested with 250 tooltips. Reduced render time by almost 50%.

Eager	Avg Render Time
true	280ms
false	143ms

Markup:

<template>
  <v-app>
    <div class="ma-4 pa-4">
      <template v-for="n in 100" :key="n">
        <v-tooltip :eager="false">
          <template #activator="{ props }">
            <button v-bind="props">Tooltip</button>
          </template>

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        </v-tooltip>
      </template>

    </div>
  </v-app>
</template>

<script setup>
  import { ref } from 'vue'
</script>