Improve consistency of Padding API

widget/src/overlay/menu.rs

@@ -383,7 +383,7 @@ where
         let size = {
             let intrinsic = Size::new(
                 0.0,
-                (f32::from(text_line_height) + self.padding.vertical())
+                (f32::from(text_line_height) + self.padding.y())
                     * self.options.len() as f32,
             );
 
@@ -424,7 +424,7 @@ where
 
                     let option_height =
                         f32::from(self.text_line_height.to_absolute(text_size))
-                            + self.padding.vertical();
+                            + self.padding.y();
 
                     let new_hovered_option =
                         (cursor_position.y / option_height) as usize;
@@ -454,7 +454,7 @@ where
 
                     let option_height =
                         f32::from(self.text_line_height.to_absolute(text_size))
-                            + self.padding.vertical();
+                            + self.padding.y();
 
                     *self.hovered_option =
                         Some((cursor_position.y / option_height) as usize);
@@ -515,7 +515,7 @@ where
             self.text_size.unwrap_or_else(|| renderer.default_size());
         let option_height =
             f32::from(self.text_line_height.to_absolute(text_size))
-                + self.padding.vertical();
+                + self.padding.y();
 
         let offset = viewport.y - bounds.y;
         let start = (offset / option_height) as usize;

widget/src/pick_list.rs

@@ -665,7 +665,7 @@ where
                     line_height: self.text_line_height,
                     font,
                     bounds: Size::new(
-                        bounds.width - self.padding.horizontal(),
+                        bounds.width - self.padding.x(),
                         f32::from(self.text_line_height.to_absolute(text_size)),
                     ),
                     align_x: text::Alignment::Default,

widget/src/text/rich.rs

@@ -287,10 +287,7 @@ where
                                     span.padding.top,
                                 ),
                             bounds.size()
-                                + Size::new(
-                                    span.padding.horizontal(),
-                                    span.padding.vertical(),
-                                ),
+                                + Size::new(span.padding.x(), span.padding.y()),
                         );
 
                         renderer.fill_quad(

widget/src/text_editor.rs

@@ -654,7 +654,7 @@ where
                     limits
                         .height(min_bounds.height)
                         .max()
-                        .expand(Size::new(0.0, self.padding.vertical())),
+                        .expand(Size::new(0.0, self.padding.y())),
                 )
             }
         }