fix(volume): only recreate marquee widget when name actually changes

Track the input name separately to properly detect changes. Previously,
comparing against ui.label.label() didn't work because marquee duplicates
the text with separator, causing recreation on every update.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: postsolar

src/modules/volume.rs

@@ -512,14 +512,15 @@ impl Module<Button> for VolumeModule {
                                 label,
                                 slider,
                                 btn_mute,
+                                label_raw: info.name.clone(),
                             },
                         );
                     }
                     Event::UpdateInput(info) => {
                         if let Some(ui) = inputs.get_mut(&info.index) {
                             // Recreate title widget if name changed and marquee is enabled
                             // (needed to reset marquee scrolling state)
-                            if self.marquee.enable && ui.label.label().as_str() != info.name {
+                            if self.marquee.enable && ui.label_raw != info.name {
                                 if let Some(old_widget) = ui.container.first_child() {
                                     ui.container.remove(&old_widget);
                                 }
@@ -534,8 +535,10 @@ impl Module<Button> for VolumeModule {
                                 );
                                 ui.container.prepend(&scrolled);
                                 ui.label = label;
-                            } else {
+                                ui.label_raw = info.name.clone();
+                            } else if ui.label_raw != info.name {
                                 ui.label.set_label(&info.name);
+                                ui.label_raw = info.name.clone();
                             }
 
                             if !ui.slider.has_css_class("dragging") {
@@ -567,4 +570,6 @@ struct InputUi {
     label: Label,
     slider: Scale,
     btn_mute: ToggleButton,
+    // Store original (unformatted) title to detect change when marquee is enabled
+    label_raw: String,
 }