iris: make span compaction explicit

app/src/ui/row.rs

@@ -331,7 +331,7 @@ where
         None => Span::empty(Dir::DOWN).add(rsc),
     };
 
-    let widget = (header, column.width(rest(1)))
+    let widget = (header, column)
         .span(Dir::DOWN)
         .gap(dp(4))
         .pad(dp(10))