Merge branch '464710-remove-plus-icon-and-add-new-word' into 'master'

Remove "+" icon and add word "new" to button

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/157394



Merged-by: David Pisek <dpisek@gitlab.com>
Approved-by: Fernando Cardenas <14022659-fernando-c@users.noreply.gitlab.com>
Approved-by: David Pisek <dpisek@gitlab.com>
Co-authored-by: Justin Zeng <hi.justinzeng@gmail.com>