Fix rate limiter configuration

config/Caddyfile

@@ -5,18 +5,18 @@
 	}
 }
 
-rate_limit {
-	distributed
-	zone dynamic {
-		key    {client_ip}
-		events 20
-		window 5s
-        jitter 0.1
-	}
-	log_key
-}
-
 :8080 {
+    rate_limit {
+        distributed
+        zone dynamic {
+            key    {client_ip}
+            events 20
+            window 5s
+            jitter 0.1
+        }
+        log_key
+    }
+
     root * /phpbb/www
 
     php_fastcgi unix//run/php-fpm.sock {