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/DisplaySettings/main.cpp b/Userland/Applications/DisplaySettings/main.cpp
index b19cfc79d6..6d154f423a 100644
--- a/Userland/Applications/DisplaySettings/main.cpp
+++ b/Userland/Applications/DisplaySettings/main.cpp
@@ -45,7 +45,7 @@ int main(int argc, char** argv)
     auto& main_widget = window->set_main_widget<GUI::Widget>();
     main_widget.set_fill_with_background_color(true);
     main_widget.set_layout<GUI::VerticalBoxLayout>();
-    main_widget.layout()->set_margins({ 4, 4, 4, 4 });
+    main_widget.layout()->set_margins(4);
     main_widget.layout()->set_spacing(6);
 
     auto& tab_widget = main_widget.add<GUI::TabWidget>();