M3: component properties keep their order on rename; Make slot asks for the name (#1536, #1537) (#1565)

Properties were listed by name, so a rename moved one. Components now keep prop_order (the names as they were made; a rename keeps the place) and every listing follows it. Make slot opens a name field under the frame's Slot row; Enter makes the slot, Escape cancels, a taken name keeps the field open.

crates/engine/src/cmd/file/rest_import_tests.rs

@@ -31,7 +31,15 @@ fn cached_import() -> Document {
     let page = doc.first_page().unwrap();
     let store = doc.ensure_library_store();
     let main = doc
-        .create(store, NodeKind::Component { description: String::new(), props: Default::default() }, "Cached main", 0.0, 0.0, 20.0, 20.0)
+        .create(
+            store,
+            NodeKind::Component { description: String::new(), props: Default::default(), prop_order: Vec::new() },
+            "Cached main",
+            0.0,
+            0.0,
+            20.0,
+            20.0,
+        )
         .unwrap();
     let body = doc.create(main, NodeKind::Rectangle, "Body", 0.0, 0.0, 20.0, 20.0).unwrap();
     let inst = doc.create(page, NodeKind::Instance { component: main, props: Default::default() }, "Cached instance", 0.0, 0.0, 20.0, 20.0).unwrap();

crates/engine/src/cmd/file/thumbnail_tests.rs

@@ -66,7 +66,8 @@ fn invalid_flags_and_non_frames_keep_the_default_thumbnail() {
     choose(&mut s, wide);
     s.doc_mut().unwrap().get_mut(wide).unwrap().kind = NodeKind::Rectangle;
     assert_eq!(thumbnail(s.doc().unwrap()).unwrap(), default, "only frames can be thumbnails");
-    s.doc_mut().unwrap().get_mut(wide).unwrap().kind = NodeKind::Component { description: String::new(), props: Default::default() };
+    s.doc_mut().unwrap().get_mut(wide).unwrap().kind =
+        NodeKind::Component { description: String::new(), props: Default::default(), prop_order: Vec::new() };
     assert_ne!(thumbnail(s.doc().unwrap()).unwrap(), default, "a component counts as a frame");
 }