chore: update returned attachement fullPath (#9516)

### Solution

fullPath prop on attachement (when returned by backend) is updated to
'domain + path' (formerly 'path').

Consequently, getFileAbsoluteURI util in front is removed.

closes #8763

---------

Co-authored-by: etiennejouan <jouan.etienne@gmail.com>

packages/twenty-server/src/engine/api/graphql/workspace-query-runner/factories/query-result-getters/handlers/attachment-query-result-getter.handler.ts

@@ -23,7 +23,7 @@ export class AttachmentQueryResultGetterHandler
 
     return {
       ...attachment,
-      fullPath: `${attachment.fullPath}?token=${signedPayload}`,
+      fullPath: `${process.env.SERVER_URL}/files/${attachment.fullPath}?token=${signedPayload}`,
     };
   }
 }