fix(player): finalize lyrics and park waveform

Hide the waveform controls and force every now-playing bar back to the classic seekbar while preserving the implementation for a later release. Keep full-screen timed lyrics centered, slightly larger and wrapped without changing the approved typography or fill.

cx

crates/qbz-qt/qml/settings/AppearanceSettings.qml

@@ -416,6 +416,9 @@ Column {
         }
     }
     SettingRow {
+        // Parked for a later visual pass. Keep the preference wiring intact so
+        // restoring the experiment does not require a settings migration.
+        visible: false
         label: QbzSession.tr("Track waveform", QbzSession.trRev)
         description: QbzSession.tr("Show the full-track waveform in the player seek bar.", QbzSession.trRev)
         QbzToggle {