devex: migrate to vue-i18n (#4966)

* sample languages refactor

* feat: consistency + dedupe impl of i18n

* fix: broken imports

* fix: intl formatted component

* fix: use relative imports

* fix: imports

* fix: comment out incomplete locales + fix imports

* feat: cleanup

* fix: ui imports

* fix: lint

* fix: admonition import

* make footer a component, fix language reactivity

* make copyright notice untranslatable

---------

Co-authored-by: Calum H. <contact@cal.engineer>

apps/frontend/src/pages/user/[id].vue

@@ -482,14 +482,16 @@ import {
 	Combobox,
 	commonMessages,
 	ContentPageHeader,
+	defineMessages,
 	injectNotificationManager,
+	IntlFormatted,
 	NewModal,
 	OverflowMenu,
 	TagItem,
 	useRelativeTime,
+	useVIntl,
 } from '@modrinth/ui'
 import { isAdmin, isStaff, UserBadge } from '@modrinth/utils'
-import { IntlFormatted } from '@vintl/vintl/components'
 
 import TenMClubBadge from '~/assets/images/badges/10m-club.svg?component'
 import AlphaTesterBadge from '~/assets/images/badges/alpha-tester.svg?component'