feat(VMenu): make activation by arrow keys optional

[fostdvelop]

Description

To keep arrow key functionality in v-list, it is required that v-menu doesn't activate on arrow-key. To not break anything this is made optional as par the standard WCAG 2.

Markup:

On v-menu now exists a property disableArrowKeysActivation.

<template>
  <v-list>
    <v-list-item v-for="i in 5">
      <v-menu :disableArrowKeysActivation="true">
        <template v-slot:activator="{ props }">
          <v-btn v-bind="props">Click me {{ i }}</v-btn>
        </template>
        <v-list v-focus>
          <v-list-item v-for="j in 5" @click="log">
            {{ j }}
          </v-list-item>
        </v-list>
      </v-menu>
    </v-list-item>
  </v-list>
</template>

<script setup>
function log() {
  console.log("hello world");
}

const vFocus = {
  mounted: (el) => {
    setTimeout(() => el.focus(), 50);
  }
}
</script>

[KaelWD]

#20092