separation of database (#1)

Reviewed-on: #1

libertas_core/src/config.rs

@@ -20,4 +20,5 @@ pub struct Config {
     pub media_library_path: String,
     pub broker_url: String,
     pub max_upload_size_mb: Option<u32>,
+    pub default_storage_quota_gb: Option<u64>,
 }