add text scaler information to expand text widget

lib/src/expand_text.dart

@@ -24,6 +24,12 @@ class ExpandText extends StatefulWidget {
   /// Corresponds to the style parameter of the text view.
   final TextStyle? style;
 
+  /// Corresponds to the textScaler parameter of the text view.
+  /// Default value is: [TextScaler.noScaling].
+  /// If user has information about scale factor, it can be passed here
+  /// To better determine whether widget overflows or not when accessibility affects text size.
+  final TextScaler textScaler;
+
   /// Corresponds to the aling parameter of the text view.
   final TextAlign textAlign;
 
@@ -91,6 +97,7 @@ class ExpandText extends StatefulWidget {
     this.maxLines = 8,
     this.style,
     this.textAlign = TextAlign.justify,
+    this.textScaler = TextScaler.noScaling,
     this.overflow = TextOverflow.fade,
     this.expandWidth = false,
     this.expandOnGesture = false,
@@ -191,6 +198,7 @@ class _ExpandTextState extends State<ExpandText>
             style: defaultTextStyle,
           ),
           textDirection: TextDirection.ltr,
+          textScaler: widget.textScaler,
           maxLines: widget.maxLines,
         )..layout(maxWidth: size.maxWidth);