button: Reduce px for compact small button. (#271)

<img width="882" alt="image"
src="https://github.com/user-attachments/assets/c41955ea-5126-4d1a-b2dd-dea2e4b89c9e">

crates/story/src/button_story.rs

@@ -402,7 +402,7 @@ impl Render for ButtonStory {
                                 Button::new("button-xs-1", cx)
                                     .label("Primary Button")
                                     .primary()
-                                    .small()
+                                    .xsmall()
                                     .disabled(disabled)
                                     .selected(selected)
                                     .loading(loading)

crates/ui/src/button.rs

@@ -342,7 +342,7 @@ impl RenderOnce for Button {
                     match self.size {
                         Size::Size(size) => this.px(size * 0.2),
                         Size::XSmall => this.h_5().px_1(),
-                        Size::Small => this.h_6().px_3().when(self.compact, |this| this.px_2()),
+                        Size::Small => this.h_6().px_3().when(self.compact, |this| this.px_1p5()),
                         _ => this.h_8().px_4().when(self.compact, |this| this.px_2()),
                     }
                 }