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/components/ui/dashboard/RevenueInputField.vue

@@ -49,9 +49,14 @@
 </template>
 
 <script setup lang="ts">
-import { ButtonStyled, Combobox, commonMessages, formFieldPlaceholders } from '@modrinth/ui'
+import {
+	ButtonStyled,
+	Combobox,
+	commonMessages,
+	formFieldPlaceholders,
+	useVIntl,
+} from '@modrinth/ui'
 import { formatMoney } from '@modrinth/utils'
-import { useVIntl } from '@vintl/vintl'
 import { computed, nextTick, ref, watch } from 'vue'
 
 const props = withDefaults(