inserido icone android, logo,ajustada a tela home e login

lib/widgets/icon_button_default.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+import 'package:rkm/utils/color_palette.dart';
+
+class IconButtonDefault extends StatelessWidget {
+  var onPressed;
+  IconData icon;
+
+  IconButtonDefault({
+    required this.icon,
+    required this.onPressed,
+});
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+        onPressed: onPressed,
+        icon: Icon(icon,color: ColorPalette.black54,size: 30,)
+    );
+  }
+}