fix: set files_locked to .locked rather than permission

* currently the permission is whether you can unlock the files
* but the files are only unlocked when you create the draft
* as such as an admin when you edit a published draft, if it was
  created by a user it will look like the files are unlocked but
  this is false

this PR correctly sets files_locked to whether the files are locked

Author: carlinmack

invenio_app_rdm/records_ui/views/decorators.py

@@ -81,11 +81,7 @@ def view(**kwargs):
                     expand=expand,
                 )
                 kwargs["draft"] = draft
-                kwargs["files_locked"] = (
-                    record_service.config.lock_edit_published_files(
-                        record_service, g.identity, draft=draft, record=draft._record
-                    )
-                )
+                kwargs["files_locked"] = draft._record.files.bucket.locked
                 return f(**kwargs)
             except PIDDoesNotExistError:
                 # Redirect to /records/:id because users are interchangeably