gpui: fix #9931 img object-fit regression (#10006)

PR: #9931 broke image scaling, such that it ignores the object-fit
parameter and instead always scales the image to fit the bounds. This
fixes the regression.

crates/gpui/src/elements/img.rs

@@ -239,7 +239,8 @@ impl Element for Img {
                 let corner_radii = style.corner_radii.to_pixels(bounds.size, cx.rem_size());
 
                 if let Some(data) = source.data(cx) {
-                    cx.paint_image(bounds, corner_radii, data.clone(), self.grayscale)
+                    let new_bounds = self.object_fit.get_bounds(bounds, data.size());
+                    cx.paint_image(new_bounds, corner_radii, data.clone(), self.grayscale)
                         .log_err();
                 }