Small restructuring

src/client/app.rs

@@ -106,18 +106,28 @@ pub struct TrackMetadata {
     pub duration: Option<Duration>,
 }
 
-#[derive(Default)]
 pub struct PlayerState {
     pub currently_playing: Option<String>,
     pub is_playing: bool,
     pub time_ratio: f64,
 }
 
+impl Default for PlayerState {
+    fn default() -> Self {
+        Self {
+            currently_playing: None,
+            is_playing: false,
+            time_ratio: 0.0,
+        }
+    }
+}
+
 impl PlayerState {
     pub fn play(&mut self, path: &str) {
         self.currently_playing = Some(path.to_string());
         self.is_playing = true;
         self.time_ratio = 0.0;
+        // TODO: Handle audio
     }
 
     pub fn toggle_pause(&mut self) {