resetView method
void
resetView()
Resets both time and price scale to default view.
Implementation
void resetView() {
_viewport = _viewport.copyWith(candleWidth: 8.0, scrollOffset: 0.0);
_verticalScale = 1.0;
_verticalPan = 0.0;
_crosshairPosition = null;
_hoveredCandle = null;
notifyListeners();
}