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, 2 insertions, 2 deletions

diff --git a/Userland/Applications/KeyboardSettings/main.cpp b/Userland/Applications/KeyboardSettings/main.cpp
index 411e6b9536..091621cfde 100644
--- a/Userland/Applications/KeyboardSettings/main.cpp
+++ b/Userland/Applications/KeyboardSettings/main.cpp
@@ -109,7 +109,7 @@ int main(int argc, char** argv)
     root_widget.set_layout<GUI::VerticalBoxLayout>();
     root_widget.set_fill_with_background_color(true);
     root_widget.layout()->set_spacing(0);
-    root_widget.layout()->set_margins({ 4, 4, 4, 4 });
+    root_widget.layout()->set_margins(4);
 
     auto& character_map_file_selection_container = root_widget.add<GUI::Widget>();
     character_map_file_selection_container.set_layout<GUI::HorizontalBoxLayout>();
@@ -154,7 +154,7 @@ int main(int argc, char** argv)
     bottom_widget.set_layout<GUI::HorizontalBoxLayout>();
     bottom_widget.layout()->add_spacer();
     bottom_widget.set_fixed_height(30);
-    bottom_widget.set_content_margins({ 4, 0, 4, 0 });
+    bottom_widget.set_content_margins({ 4, 0 });
 
     auto& ok_button = bottom_widget.add<GUI::Button>();
     ok_button.set_text("OK");