add: cloudflare turnstile captcha

add: "popular communities" card in communities list

crates/app/src/routes/api/v1/mod.rs

@@ -188,11 +188,19 @@ pub fn routes() -> Router {
 }
 
 #[derive(Deserialize)]
-pub struct AuthProps {
+pub struct LoginProps {
     pub username: String,
     pub password: String,
 }
 
+#[derive(Deserialize)]
+pub struct RegisterProps {
+    pub username: String,
+    pub password: String,
+    pub policy_consent: bool,
+    pub captcha_response: String,
+}
+
 #[derive(Deserialize)]
 pub struct CreateCommunity {
     pub title: String,