Wire resize algorithm selection, overwrite behavior, and fix rotation/flip scope

pixstrip-gtk/src/steps/step_resize.rs

@@ -453,6 +453,12 @@ pub fn build_resize_page(state: &AppState) -> adw::NavigationPage {
             jc.borrow_mut().flip = row.selected();
         });
     }
+    {
+        let jc = state.job_config.clone();
+        algorithm_row.connect_selected_notify(move |row| {
+            jc.borrow_mut().resize_algorithm = row.selected();
+        });
+    }
 
     scrolled.set_child(Some(&content));