Activity editor add File block (#3146)

* - added file block

* fised auth useeffect

* - add cmd v for file block

* remove feature flag for attachment upload in blockeditor

---------

Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-front/src/modules/activities/blocks/spec.ts

@@ -0,0 +1,8 @@
+import { defaultBlockSpecs } from '@blocknote/core';
+
+import { FileBlock } from './FileBlock';
+
+export const blockSpecs: any = {
+  ...defaultBlockSpecs,
+  file: FileBlock,
+};