fix: heading rending error on sidebar

src/main/frontend/db/model.cljs

@@ -73,6 +73,7 @@
     :block/file
     :block/parent
     :block/unordered
+    :block/heading-level
     {:block/page [:db/id :block/name :block/original-name :block/journal-day]}
     {:block/_parent ...}])