feat: localisation and multi-lang support (#95)

* feat: setup localisation with lingui

* Fix hydration and locale issues

* Add missing translations and tweak selector styling

* Extend language support

* Update lang support

* Extend lang support

* Fix build and add dyanmic imports

apps/web/src/components/LanguageSelector.tsx

@@ -0,0 +1,26 @@
+import { HiLanguage } from "react-icons/hi2";
+
+import { useLocalisation } from "~/hooks/useLocalisation";
+import { localeNames } from "~/locales";
+
+export function LanguageSelector() {
+  const { locale, setLocale, availableLocales } = useLocalisation();
+
+  return (
+    <div className="relative">
+      <HiLanguage className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-gray-400" />
+      <select
+        id="language-select"
+        value={locale}
+        onChange={(e) => setLocale(e.target.value as any)}
+        className="mt-8 block w-full max-w-[180px] rounded-lg border-0 bg-light-50 pl-10 shadow-sm ring-1 ring-inset ring-light-300 focus:ring-2 focus:ring-inset focus:ring-light-400 dark:bg-dark-50 dark:text-dark-1000 dark:ring-dark-300 dark:focus:ring-dark-500 sm:text-sm"
+      >
+        {availableLocales.map((loc) => (
+          <option key={loc} value={loc}>
+            {localeNames[loc]}
+          </option>
+        ))}
+      </select>
+    </div>
+  );
+}