fix: remove btn in tab menu fixed

apps/web/src/components/note/index.js

@@ -43,7 +43,7 @@ const menuItems = (note, index, context) => [
     }
   },
   {
-    invisible: !context,
+    invisible: context ? (context.type === "topic" ? false : true) : true,
     title: "Remove",
     onClick: async () => {
       confirm(

apps/web/src/stores/editor-store.js

@@ -11,6 +11,7 @@ const SESSION_STATES = {
 };
 
 const DEFAULT_SESSION = {
+  notebook: undefined,
   state: "",
   isSaving: false,
   title: "",