Fix arrowHeadColor breaks differentiation between states (#165178)

Fix https://github.com/flutter/flutter/issues/160458

The arrowheads color is currently displayed wrong when passing
`arrowHeadColor` parameter, it's due to the `arrowHeadColor` is passing
to IconButton.icon widget, not IconButton.color itself. Meanwhile, the
IconButton state depends on `onPressed` callback and the button color
logic happens in IconButton, not in Icon widget. The fix is simply to
pass `arrowHeadColor` to IconButton so that buttons will be displaying
correct color when state changes.

| before | after |
| --------------- | --------------- |
<video
src="https://github.com/user-attachments/assets/20f08366-7c42-4f00-bfea-40f1c6498dd7"/>
| <video
src="https://github.com/user-attachments/assets/a018a60f-4238-4f8a-9784-1db71592f08c"/>

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we expect every widget to implement].
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above.
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[test-exempt].
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Fixes] where supported.
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Signed-off-by: huycozy <huy@nevercode.io>

packages/flutter/lib/src/material/paginated_data_table.dart

@@ -557,28 +557,32 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
       const SizedBox(width: 32.0),
       if (widget.showFirstLastButtons)
         IconButton(
-          icon: Icon(Icons.skip_previous, color: widget.arrowHeadColor),
+          icon: const Icon(Icons.skip_previous),
           padding: EdgeInsets.zero,
+          color: widget.arrowHeadColor,
           tooltip: localizations.firstPageTooltip,
           onPressed: _firstRowIndex <= 0 ? null : _handleFirst,
         ),
       IconButton(
-        icon: Icon(Icons.chevron_left, color: widget.arrowHeadColor),
+        icon: const Icon(Icons.chevron_left),
         padding: EdgeInsets.zero,
+        color: widget.arrowHeadColor,
         tooltip: localizations.previousPageTooltip,
         onPressed: _firstRowIndex <= 0 ? null : _handlePrevious,
       ),
       const SizedBox(width: 24.0),
       IconButton(
-        icon: Icon(Icons.chevron_right, color: widget.arrowHeadColor),
+        icon: const Icon(Icons.chevron_right),
         padding: EdgeInsets.zero,
+        color: widget.arrowHeadColor,
         tooltip: localizations.nextPageTooltip,
         onPressed: _isNextPageUnavailable() ? null : _handleNext,
       ),
       if (widget.showFirstLastButtons)
         IconButton(
-          icon: Icon(Icons.skip_next, color: widget.arrowHeadColor),
+          icon: const Icon(Icons.skip_next),
           padding: EdgeInsets.zero,
+          color: widget.arrowHeadColor,
           tooltip: localizations.lastPageTooltip,
           onPressed: _isNextPageUnavailable() ? null : _handleLast,
         ),

packages/flutter/test/material/paginated_data_table_test.dart

@@ -1308,7 +1308,7 @@ void main() {
       ),
     );
 
-    final Iterable<Icon> icons = tester.widgetList(find.byType(Icon));
+    final Iterable<IconButton> icons = tester.widgetList(find.byType(IconButton));
 
     expect(icons.elementAt(0).color, arrowHeadColor);
     expect(icons.elementAt(1).color, arrowHeadColor);