Nuxtjs, Only Desktop plugin?

i want to add Messenger chat o my website, only Desktop. How can i do this?

import Vue from 'vue'
import VueFbCustomerChat from 'vue-fb-customer-chat'

Vue.use(VueFbCustomerChat, {
	page_id: xxxx,
	theme_color: '#6a9e10',
	locale: 'vi_VN',
})

User Agent?

i cant use Regex in Nuxt.config