Quarantining add_file_template_spec
What does this MR do?
Quarantines qa/specs/features/browser_ui/3_create/web_ide/add_file_template_spec
due to failure in Nightly images along with it not handling it's failure well and causing all remaining tests to fail also.
More info here - https://gitlab.com/gitlab-org/quality/nightly/issues/127