Pass spread radius and offset to Shadow

crates/gpui/src/scene.rs

@@ -493,10 +493,12 @@ impl From<Underline> for Primitive {
 pub(crate) struct Shadow {
     pub order: DrawOrder,
     pub blur_radius: ScaledPixels,
+    pub spread_radius: ScaledPixels,
     pub bounds: Bounds<ScaledPixels>,
     pub corner_radii: Corners<ScaledPixels>,
     pub content_mask: ContentMask<ScaledPixels>,
     pub color: Hsla,
+    pub offset: Point<ScaledPixels>,
 }
 
 impl From<Shadow> for Primitive {

crates/gpui/src/window.rs

@@ -2286,6 +2286,8 @@ impl<'a> WindowContext<'a> {
                 content_mask: content_mask.scale(scale_factor),
                 corner_radii: corner_radii.scale(scale_factor),
                 color: shadow.color.opacity(opacity),
+                spread_radius: shadow.spread_radius.scale(scale_factor),
+                offset: shadow.offset.scale(scale_factor),
             });
         }
     }