feat: slightly better config

rust/src/cmd.rs

@@ -139,7 +139,7 @@ pub async fn init_profile(
 pub async fn set_cfg(
     state: State<'_, Mutex<AppData>>,
     key: String,
-    value: String
+    value: serde_json::Value
 ) -> Result<(), ()> {
     log::debug!("invoke: sync_cfg({}, {})", key, value);