feat: Multiple file upload, improved placeholders, local previews

apps/client/src/features/editor/extensions/extensions.ts

@@ -42,6 +42,7 @@ import {
   Heading,
   Highlight,
   UniqueID,
+  SharedStorage,
 } from "@docmost/editor-ext";
 import {
   randomElement,
@@ -107,6 +108,7 @@ export const mainExtensions = [
       },
     },
   }),
+  SharedStorage,
   Heading,
   UniqueID.configure({
     types: ["heading", "paragraph"],