[Bug]: Widget Pointer size doesn't impact Size of the LinearGauge

[Afroz-Shaikh]

BUG: WidgetPointer Size doesn't impact Size of the LinearGauge as it does for ShapePointers
Description: The size of the WidgetPointer doesn't impact the size of the LinearGauge

Steps to Reproduce:

LinearGauge(
          steps: 10,
          pointers: const [
            WidgetPointer(
              value: 0,
              child: Text(
                "☠️",
                style: TextStyle(
                  fontSize: 300,
                ),
              ),
            ),
          ],
          rulers: RulerStyle(rulerPosition: RulerPosition.bottom),
        ),

Environment:
Version : 1.0.1

Additonal Information
This issue occurs in Horizontal & Vertical GaugeOrientations
The issue occurs consistently across different devices and browsers.