Edit Sketch no longer shows bodies a later feature deletes (#1329)

Fixes #1167. While a sketch is edited, a body that a rolled-off, unsuppressed Remove deletes is not shown (unless the sketch is built on it); the history stays rolled back, only the view changes. Drawing, picking, screenshots, thumbnails and the browser's Bodies folder agree; document.inspect reports removed_later. Checked on main + this branch: cargo check --workspace, the engine sketch_edit_removed/occurrences tests and the UI viewport/browser tests.

crates/ui-egui/src/viewport.rs

@@ -19,6 +19,10 @@ use crate::{SolveApp, icons};
 #[path = "viewport_appearance_tests.rs"]
 mod appearance_tests;
 
+#[cfg(test)]
+#[path = "viewport_removed_later_tests.rs"]
+mod removed_later_tests;
+
 #[cfg(test)]
 #[path = "viewport_plane_target_tests.rs"]
 mod plane_target_tests;