addEffectOverlayRange method
Adds a timed effect from start to end (project time).
Implementation
void addEffectOverlayRange(VideoEditorEffect effect, Duration start, Duration end) {
effectController.addEffectOverlay(VideoEffectOverlay(
id: 'effect_${DateTime.now().microsecondsSinceEpoch}',
effect: effect,
startTime: start,
endTime: end,
));
_saveState();
notifyListeners();
}