Refactor i18n settings and improve language load handling

This update separates the creation of i18n settings into its own function (@kit/i18n) and enhances the handling of language and namespace loading in i18n.client. It tracks loaded languages and namespaces, and prevents rendering if none are loaded or after a maximum number of iterations. The usage of Suspense has also been modified in root-providers to employ a null fallback.

apps/web/components/root-providers.tsx

@@ -46,7 +46,7 @@ export function RootProviders({
   return (
     <QueryClientProvider client={queryClient}>
       <ReactQueryStreamedHydration>
-        <Suspense>
+        <Suspense fallback={null}>
           <I18nProvider settings={i18nSettings} resolver={i18nResolver}>
             <CaptchaProvider>
               <CaptchaTokenSetter siteKey={captchaSiteKey} />