expose OverflowAxis::Hidden as Overflow functions (#17528)

# Objective
expose `OverflowAxis::Hidden` as functions of `Overflow`, just as it is
done for `OverflowAxis::Hidden` and `OverflowAxis::Scroll`.

crates/bevy_ui/src/ui_node.rs

@@ -1064,6 +1064,30 @@ impl Overflow {
         }
     }
 
+    /// Hide overflowing items on both axes by influencing layout and then clipping
+    pub const fn hidden() -> Self {
+        Self {
+            x: OverflowAxis::Hidden,
+            y: OverflowAxis::Hidden,
+        }
+    }
+
+    /// Hide overflowing items on the x axis by influencing layout and then clipping
+    pub const fn hidden_x() -> Self {
+        Self {
+            x: OverflowAxis::Hidden,
+            y: OverflowAxis::Visible,
+        }
+    }
+
+    /// Hide overflowing items on the y axis by influencing layout and then clipping
+    pub const fn hidden_y() -> Self {
+        Self {
+            x: OverflowAxis::Visible,
+            y: OverflowAxis::Hidden,
+        }
+    }
+
     /// Overflow is visible on both axes
     pub const fn is_visible(&self) -> bool {
         self.x.is_visible() && self.y.is_visible()