enhance(ui): simplify plugin property check in sorting logic

src/main/frontend/db/model.cljs

@@ -341,9 +341,9 @@ independent of format as format specific heading characters are stripped"
                  remove-non-queryable-built-in-property? false
                  remove-ui-non-suitable-properties? false}}]
   (let [db (conn/get-db graph)
-        result (sort-by (juxt (fn [p] (-> (:db/ident p)
-                                          (db-property/plugin-property?)
-                                          (boolean)))
+        result (sort-by (juxt (fn [p]
+                                (some-> (:db/ident p)
+                                        (db-property/plugin-property?)))
                               ldb/built-in?
                               :block/title)
                         (ldb/get-all-properties db))]