chore: tidy up ID usage; fmt

ferri-server/src/endpoints/api/preferences.rs

@@ -1,5 +1,7 @@
-use rocket::{get, serde::{json::Json, Deserialize, Serialize}};
-
+use rocket::{
+    get,
+    serde::{Deserialize, Serialize, json::Json},
+};
 
 #[derive(Serialize, Deserialize)]
 #[serde(crate = "rocket::serde")]
@@ -25,4 +27,4 @@ pub async fn preferences() -> Json<Preferences> {
         reading_expand_media: "default".to_string(),
         reading_expand_spoilers: false,
     })
-}
+}