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.

3 files changed, 3 insertions, 3 deletions

diff --git a/Userland/Applications/Browser/BrowserWindow.gml b/Userland/Applications/Browser/BrowserWindow.gml
index 39a6b05f84..d8360a9583 100644
--- a/Userland/Applications/Browser/BrowserWindow.gml
+++ b/Userland/Applications/Browser/BrowserWindow.gml
@@ -12,7 +12,7 @@
 
     @GUI::TabWidget {
         name: "tab_widget"
-        container_margins: [0, 0, 0, 0]
+        container_margins: [0]
         uniform_tabs: true
         text_alignment: "CenterLeft"
     }
diff --git a/Userland/Applications/Browser/DownloadWidget.cpp b/Userland/Applications/Browser/DownloadWidget.cpp
index 39b3835677..d0c0e92a96 100644
--- a/Userland/Applications/Browser/DownloadWidget.cpp
+++ b/Userland/Applications/Browser/DownloadWidget.cpp
@@ -61,7 +61,7 @@ DownloadWidget::DownloadWidget(const URL& url)
 
     set_fill_with_background_color(true);
     auto& layout = set_layout<GUI::VerticalBoxLayout>();
-    layout.set_margins({ 4, 4, 4, 4 });
+    layout.set_margins(4);
 
     auto& animation_container = add<GUI::Widget>();
     animation_container.set_fixed_height(32);
diff --git a/Userland/Applications/Browser/EditBookmark.gml b/Userland/Applications/Browser/EditBookmark.gml
index e7f7dd7169..86134dfe8e 100644
--- a/Userland/Applications/Browser/EditBookmark.gml
+++ b/Userland/Applications/Browser/EditBookmark.gml
@@ -4,7 +4,7 @@
     fill_with_background_color: true
 
     layout: @GUI::VerticalBoxLayout {
-        margins: [4, 4, 4, 4]
+        margins: [4]
     }