fix(VChip): prevent text selection for link chips

[MetRonnie]

Description

Dragging the cursor slightly while clicking a VChip with the link prop (or otherwise clickable with @click I think) would cause the text to become selected. This PR prevents text selection.

Markup:

<template>
  <v-app>
    <v-main>
      <v-chip link>Try selecting me</v-chip>
    </v-main>
  </v-app>
</template>