fix: synchronize responsive navigation and soundtrack cue

tests/unit/SceneCanvas.test.ts

@@ -262,14 +262,14 @@ describe("DriveControls", () => {
       },
     });
 
-  it("presents one explicit drive action before audio activation", async () => {
+  it("presents one explicit soundtrack action before audio activation", async () => {
     const wrapper = mountControls(policy());
 
     expect(wrapper.get('[data-drive-state="idle"]').text()).toContain(
-      "START THE DRIVE",
+      "PLAY SOUNDTRACK",
     );
     expect(wrapper.find('[aria-label="Mute sound"]').exists()).toBe(false);
-    await wrapper.get('[aria-label="Start the drive"]').trigger("click");
+    await wrapper.get('[aria-label="Play soundtrack"]').trigger("click");
     expect(wrapper.emitted("audioStart")).toHaveLength(1);
     wrapper.unmount();
   });