Updated print style

Closes #14201

app/assets/stylesheets/print.scss

-/* Generic print styles */
-header, nav, nav.main-nav, nav.navbar-collapse, nav.navbar-collapse.collapse {display: none!important;}
-.profiler-results {display: none;}
-
-/* Styles targeted specifically at printing files */
-.tree-ref-holder, .tree-holder .breadcrumb, .blob-commit-info {display: none;}
-.file-title {display: none;}
-.file-holder {border: none;}
-
 .wiki h1, .wiki h2, .wiki h3, .wiki h4, .wiki h5, .wiki h6 {margin-top: 17px; }
 .wiki h1 {font-size: 30px;}
 .wiki h2 {font-size: 22px;}
 .wiki h3 {font-size: 18px; font-weight: bold; }
 
-.sidebar-wrapper { display: none; }
-.nav { display: none; }
-.btn { display: none; }
+header,
+nav,
+nav.main-nav,
+nav.navbar-collapse,
+nav.navbar-collapse.collapse,
+.profiler-results,
+.tree-ref-holder,
+.tree-holder .breadcrumb,
+.blob-commit-info,
+.file-title,
+.file-holder,
+.sidebar-wrapper,
+.nav,
+.btn,
+ul.notes-form,
+.merge-request-ci-status .ci-status-link:after,
+.issuable-gutter-toggle,
+.gutter-toggle,
+.issuable-details .content-block-small,
+.edit-link,
+.note-action-button {
+  display: none!important;
+}
+
+.page-gutter {
+  padding-top: 0;
+  padding-left: 0;
+}
+
+.right-sidebar {
+  top: 0;
+}

app/views/projects/notes/_notes_with_form.html.haml

 %ul#notes-list.notes.main-notes-list.timeline
   = render "projects/notes/notes"
-%ul.notes.timeline
+%ul.notes.notes-form.timeline
   %li.timeline-entry
     - if can? current_user, :create_note, @project
       .timeline-icon.hidden-xs.hidden-sm