feat(i18n): implement localization using LinguiJS

apps/client/src/libs/lingui.ts

@@ -0,0 +1,16 @@
+import { i18n } from "@lingui/core";
+import { t } from "@lingui/macro";
+
+export const getLocales = () => ({
+  "en-US": t`English`,
+  "de-DE": t`German`,
+});
+
+export const defaultLocale = "en-US";
+
+export async function dynamicActivate(locale: string) {
+  const { messages } = await import(`../locales/${locale}.po`);
+
+  i18n.load(locale, messages);
+  i18n.activate(locale);
+}