Add WidgetAnimator docs

Author: ThomasFarstrike

docs/frameworks/audioflinger.md

@@ -708,5 +708,6 @@ AudioFlinger.record_wav("test.wav", duration_ms=5000)
 ## See Also
 
 - [Creating Apps](../apps/creating-apps.md) - Learn how to create MicroPythonOS apps
+- [WidgetAnimator](widget-animator.md) - Smooth UI animations
 - [LightsManager](lights-manager.md) - LED control for visual feedback
 - [SharedPreferences](preferences.md) - Store audio preferences

docs/frameworks/lights-manager.md

@@ -648,5 +648,6 @@ class StatusIndicatorActivity(Activity):
 ## See Also
 
 - [Creating Apps](../apps/creating-apps.md) - Learn how to create MicroPythonOS apps
+- [WidgetAnimator](widget-animator.md) - Smooth UI animations
 - [AudioFlinger](audioflinger.md) - Audio control for sound feedback
 - [SensorManager](sensor-manager.md) - Sensor integration for interactive effects