clippy idiomacy

src/application.rs

@@ -39,11 +39,17 @@ glib::wrapper! {
         @implements gio::ActionGroup, gio::ActionMap;
 }
 
-impl Application {
-    pub fn new() -> Self {
-        glib::Object::builder()
+impl Default for Application {
+    fn default() -> Self {
+        glib::Object::builder::<Application>()
             .property("application-id", "eu.callcc.audrey")
             .property("flags", gio::ApplicationFlags::default())
             .build()
     }
 }
+
+impl Application {
+    pub fn new() -> Self {
+        Self::default()
+    }
+}