Userland+LibGUI: Add shorthand versions of the Margins constructor

This allows for typing [8] instead of [8, 8, 8, 8] to specify the same
margin on all edges, for example. The constructors follow CSS' style of
specifying margins. The added constructors are:

- Margins(int all): Sets the same margin on all edges.
- Margins(int vertical, int horizontal): Sets the first argument to top
  and bottom margins, and the second argument to left and right margins.
- Margins(int top, int vertical, int bottom): Sets the first argument to
  the top margin, the second argument to the left and right margins,
  and the third argument to the bottom margin.

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Applications/PixelPaint/CreateNewImageDialog.cpp b/Userland/Applications/PixelPaint/CreateNewImageDialog.cpp
index b525b1f44c..1a5dd5e057 100644
--- a/Userland/Applications/PixelPaint/CreateNewImageDialog.cpp
+++ b/Userland/Applications/PixelPaint/CreateNewImageDialog.cpp
@@ -23,7 +23,7 @@ CreateNewImageDialog::CreateNewImageDialog(GUI::Window* parent_window)
     main_widget.set_fill_with_background_color(true);
 
     auto& layout = main_widget.set_layout<GUI::VerticalBoxLayout>();
-    layout.set_margins({ 4, 4, 4, 4 });
+    layout.set_margins(4);
 
     auto& name_label = main_widget.add<GUI::Label>("Name:");
     name_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);