first commit for mih package toolkit

lib/src/mih_package_action.dart

@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+
+/// A standardized action button component for the MIH Toolkit.
+///
+/// [MihPackageAction] provides a consistent wrapper around [IconButton].
+/// It is designed for use in headers, toolbars, and navigation bars where
+/// precise control over [iconSize] and padding is required.
+///
+/// By default, it removes all internal padding to ensure the icon aligns
+/// perfectly with text or other UI elements.
+///
+/// ### Example:
+/// ```dart
+/// MihPackageAction(
+///   icon: Icon(Icons.arrow_back),
+///   iconSize: 24.0,
+///   onTap: () => Navigator.pop(context),
+/// )
+/// ```
+class MihPackageAction extends StatefulWidget {
+  /// The callback that is called when the button is tapped.
+  ///
+  /// If null, the button will be disabled and appear greyed out.
+  final void Function()? onTap;
+
+  /// The size of the icon inside the button.
+  final double iconSize;
+
+  /// The widget to display as the button's icon (typically an [Icon] or [MihIcons]).
+  final Widget icon;
+  const MihPackageAction({
+    super.key,
+    required this.icon,
+    required this.iconSize,
+    required this.onTap,
+  });
+
+  @override
+  State<MihPackageAction> createState() => _MihPackageActionState();
+}
+
+class _MihPackageActionState extends State<MihPackageAction> {
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+      iconSize: widget.iconSize,
+      padding: const EdgeInsets.all(0),
+      onPressed: widget.onTap,
+      icon: widget.icon,
+    );
+  }
+}