fix(database): use && instead of || for conf null/empty checks

`||` caused config volumes to mount even when conf was null,
since `!is_null(null)` is false but `!empty(null)` is true —
condition always evaluated to true.

app/Actions/Database/StartRedis.php

@@ -181,7 +181,7 @@ class StartRedis
             );
         }
 
-        if (! is_null($this->database->redis_conf) || ! empty($this->database->redis_conf)) {
+        if (! is_null($this->database->redis_conf) && ! empty($this->database->redis_conf)) {
             $docker_compose['services'][$container_name]['volumes'][] = [
                 'type' => 'bind',
                 'source' => $this->configuration_dir.'/redis.conf',