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>

packages/ui/package.json

@@ -24,8 +24,6 @@
 		"@formatjs/cli": "^6.2.12",
 		"@modrinth/tooling-config": "workspace:*",
 		"@stripe/stripe-js": "^7.3.1",
-		"@vintl/unplugin": "^1.5.1",
-		"@vintl/vintl": "^4.4.1",
 		"stripe": "^18.1.1",
 		"typescript": "^5.4.5",
 		"vue": "^3.5.13",
@@ -34,6 +32,8 @@
 	},
 	"dependencies": {
 		"@codemirror/commands": "^6.3.2",
+		"intl-messageformat": "^10.7.7",
+		"vue-i18n": "^9.14.4",
 		"@codemirror/lang-markdown": "^6.2.3",
 		"@codemirror/language": "^6.9.3",
 		"@codemirror/state": "^6.3.2",
@@ -47,7 +47,6 @@
 		"@tresjs/post-processing": "^2.4.0",
 		"@types/markdown-it": "^14.1.1",
 		"@types/three": "^0.172.0",
-		"@vintl/how-ago": "^3.0.1",
 		"@vueuse/core": "^11.1.0",
 		"apexcharts": "^3.44.0",
 		"dayjs": "^1.11.10",