style: clippy fixes and linter formatting

src/activities/add.rs

@@ -1,8 +1,4 @@
-use activitypub_federation::{
-    config::Data,
-    fetch::object_id::ObjectId,
-    traits::Activity,
-};
+use activitypub_federation::{config::Data, fetch::object_id::ObjectId, traits::Activity};
 use serde::{Deserialize, Serialize};
 use url::Url;
 
@@ -35,8 +31,12 @@ impl Activity for AddActivity {
     type DataType = FederationData;
     type Error = Error;
 
-    fn id(&self) -> &Url { &self.id }
-    fn actor(&self) -> &Url { self.actor.inner() }
+    fn id(&self) -> &Url {
+        &self.id
+    }
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
 
     async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
         if let Some(attributed_to) = self.object.get("attributedTo").and_then(|v| v.as_str())