need to setup streaming for kb on wasm

Author: yjpark

apps/notation_kb/src/kb.rs

@@ -15,6 +15,8 @@ impl NotationKnowledgeBase {
         app.init_resource::<IndexPanel>();
         app.add_startup_system(Self::setup_state);
         TabPlugin::setup_mouse_input(app);
+        #[cfg(target_arch = "wasm32")]
+        notation_bevy::prelude::StereoStream::init_streaming(app, true);
         app.add_system_set(
             SystemSet::on_update(NotationAssetsStates::Loaded)
                 .with_system(IndexPanel::hack_settings)

apps/notation_kb/src/theory/scale.rs

@@ -147,6 +147,6 @@ impl ScalePage {
         )
     }
     pub fn check_reload(&self, tab: &Tab) -> bool {
-        self.scale != tab.meta.scale || self.key != tab.meta.key
+        self.scale != tab.meta.scale || self.key != tab.meta.key || tab.bars.len() == 0
     }
 }