resizeToAvoidBottomPadding property
If true the sheet content should size itself to avoid the onscreen keyboard
whose height is defined by the ambient MediaQuery's MediaQueryData.viewInsets property.
This will affect viewport constraints and pixel offsets for all sheet states.
If you are using SafeArea and TextFields inside ToggleSheet and keyboard may appear in.
Make sure that you set maintainBottomViewPadding: false inside SafeArea widget
to prevent safe area appear at top of keyboard.
Otherwise, set maintainBottomViewPadding: true.
Implementation
final bool resizeToAvoidBottomPadding;