Added claudflare Turnstile captcha support

src/i18n.rs

@@ -135,6 +135,8 @@ pub struct Translations {
     pub settings_timezone: &'static str,
     pub settings_site_domain: &'static str,
     pub settings_seo_keywords: &'static str,
+    pub settings_turnstile_site_key: &'static str,
+    pub settings_turnstile_secret_key: &'static str,
     pub landing_contact_label: &'static str,
     pub landing_pricing_title: &'static str,
 
@@ -348,6 +350,8 @@ static RU: Translations = Translations {
     settings_timezone: "Часовой пояс (например Asia/Vladivostok)",
     settings_site_domain: "Домен сайта (например https://example.com)",
     settings_seo_keywords: "SEO-ключевые слова (через запятую, отображаются на сайте и в мета-теге keywords)",
+    settings_turnstile_site_key: "Cloudflare Turnstile — Site Key (ключ виджета)",
+    settings_turnstile_secret_key: "Cloudflare Turnstile — Secret Key (секретный ключ)",
     landing_contact_label: "Или свяжитесь с нами напрямую",
     landing_pricing_title: "Стоимость",
 
@@ -551,6 +555,8 @@ static EN: Translations = Translations {
     settings_timezone: "Timezone (e.g. Asia/Vladivostok)",
     settings_site_domain: "Site domain (e.g. https://example.com)",
     settings_seo_keywords: "SEO keywords (comma-separated, shown on site and in keywords meta tag)",
+    settings_turnstile_site_key: "Cloudflare Turnstile — Site Key",
+    settings_turnstile_secret_key: "Cloudflare Turnstile — Secret Key",
     landing_contact_label: "Or contact us directly",
     landing_pricing_title: "Pricing",