Add system modification tracking for reversible installs

src/ui/detail_view.rs

@@ -969,6 +969,7 @@ fn build_system_tab(record: &AppImageRecord, db: &Rc<Database>, toast_overlay: &
                 },
             );
         } else {
+            integrator::undo_all_modifications(&db_ref, record_id).ok();
             integrator::remove_integration(&record_clone).ok();
             db_ref.set_integrated(record_id, false, None).ok();
         }