Merge branch '225959-replace-fa-sticky-note-o-icons-with-gitlab-svg-document-icon' into 'master'

Resolve "Replace fa-sticky-note-o icons with GitLab SVG document icon"

Closes #225959

See merge request gitlab-org/gitlab!36095

app/views/admin/users/_user_listing_note.html.haml

 - if user.note.present?
   %span.has-tooltip.user-note{ title: user.note }
-    = icon("sticky-note-o cgrey")
+    = sprite_icon('document', size: 16, css_class: 'gl-vertical-align-middle')