Files - Migrate attachments in activities (#17808)

As attachment files have migrated from fullPath to file files field,
need to migrate richText logic to fit to new attachment file handling +
data migration

packages/twenty-front/src/modules/activities/utils/getAttachmentPath.ts

@@ -1,4 +1,8 @@
 export const getAttachmentPath = (attachmentFullPath: string) => {
+  if (attachmentFullPath.includes('/files-field/')) {
+    return attachmentFullPath?.split('?')[0];
+  }
+
   if (!attachmentFullPath.includes('/files/')) {
     return attachmentFullPath?.split('?')[0];
   }