feat: login page

lib/presentation/components/spacer/spacer.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+
+class SpaceHeight extends StatelessWidget {
+  const SpaceHeight(this.height, {super.key});
+
+  final double height;
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(height: height);
+  }
+}
+
+class SpaceWidth extends StatelessWidget {
+  const SpaceWidth(this.width, {super.key});
+
+  final double width;
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(width: width);
+  }
+}