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/composables/generated.ts

@@ -35,6 +35,7 @@ export interface GeneratedState extends Labrinth.State.GeneratedState {
 	// Metadata
 	lastGenerated?: string
 	apiUrl?: string
+	buildYear: number
 }
 
 /**
@@ -121,4 +122,6 @@ export const useGeneratedState = () =>
 		lastGenerated: generatedState.lastGenerated,
 		apiUrl: generatedState.apiUrl,
 		errors: generatedState.errors,
+
+		buildYear: new Date().getFullYear(),
 	}))