feat(KAN-16): add English localization foundation

resources/js/types/global.d.ts

@@ -1,4 +1,5 @@
 import type { Auth } from '@/types/auth';
+import type { LocalizationSettings } from '@/types/localization';
 import type { Page, Router } from '@inertiajs/core';
 import { createHeadManager } from '@inertiajs/vue3';
 
@@ -19,6 +20,7 @@ declare module '@inertiajs/core' {
     export interface InertiaConfig {
         sharedPageProps: {
             name: string;
+            localization: LocalizationSettings;
             auth: Auth;
             sidebarOpen: boolean;
         };

resources/js/types/localization.ts

@@ -0,0 +1,13 @@
+import type { en } from '@/locales/en';
+
+export type TranslationKey = keyof typeof en;
+export type PluralMessage = Partial<Record<Intl.LDMLPluralRule, string>> & {
+    other: string;
+};
+export type TranslationCatalog = Record<TranslationKey, string | PluralMessage>;
+export type TranslationParameters = Record<string, string | number>;
+
+export type LocalizationSettings = {
+    locale: string;
+    timeZone: string;
+};