update demo

doric-demo/src/ComplicatedDemo.ts

@@ -38,7 +38,8 @@ class MyDemo extends Panel {
                             textColor: Color.WHITE,
                             backgroundColor: colors[idx % colors.length],
                         }))
-                    }
+                    },
+                    layoutConfig: layoutConfig().most(),
                 }),
                 layoutConfig: layoutConfig().most(),
             }).also(v => {

doric-demo/src/SliderDemo.ts

@@ -44,7 +44,7 @@ class SliderPanel extends Panel {
                 },
                 layoutConfig: {
                     widthSpec: LayoutSpec.MOST,
-                    heightSpec: LayoutSpec.FIT,
+                    heightSpec: LayoutSpec.MOST,
                     weight: 1,
                 },
             }),