app/components/Layout/SubHeader/Breadcrumbs.vue

<template>
  <v-breadcrumbs
    :items="items"
  />
</template>

<script setup lang="ts">
import {useRouter, useRuntimeConfig} from "#app";
import {computed, ComputedRef} from "@vue/reactivity";
import {AnyJson} from "~/types/data";
import {useI18n} from "vue-i18n";
import Url from "~/services/utils/url";

const runtimeConfig = useRuntimeConfig()
const i18n = useI18n()
const router = useRouter()

const items: ComputedRef<Array<AnyJson>> = computed(() => {
  const crumbs:Array<AnyJson> = []

  crumbs.push({
    title: i18n.t('welcome'),
    href: runtimeConfig.baseUrlAdminLegacy
  })

  const pathPart: Array<string> = Url.split(router.currentRoute.value.path)

  let path: string = ''

  pathPart.forEach((part) => {
    path = `${path}/${part}`

    const match = router.resolve(path)

    if (match.name !== null) {
      crumbs.push({
        title: !parseInt(part, 10) ? i18n.t(part + '_breadcrumbs') : i18n.t('item'),
        exact: true,
        to: path
      })
    }
  })

  console.log(crumbs)
  return crumbs
})
</script>