feat: Add helper to flexbox

src/features/ui/ui/flexbox.rs

@@ -4,6 +4,7 @@ pub trait Flexbox {
     fn hstack(spacing: Val) -> Self;
     fn vstack(spacing: Val) -> Self;
     fn center() -> Self;
+    fn from_padding(padding: UiRect) -> Self;
 }
 
 impl Flexbox for Node {
@@ -30,4 +31,11 @@ impl Flexbox for Node {
             ..default()
         }
     }
+
+    fn from_padding(padding: UiRect) -> Self {
+        Node {
+            padding,
+            ..default()
+        }
+    }
 }