Merge branch 'wiki-form-submit-button-not-disabled' into 'master'

Wiki form: Don't disable submit button

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/170561



Merged-by: Himanshu Kapoor <info@fleon.org>
Approved-by: Himanshu Kapoor <info@fleon.org>
Co-authored-by: Sascha Eggenberger <seggenberger@gitlab.com>