Audit and update buttons on Projects::BoardsController#index

app/assets/stylesheets/framework/filters.scss

@@ -398,7 +398,6 @@
 
     > svg {
       position: absolute;
-      top: 11px;
       right: 6px;
     }
   }

app/views/shared/issuable/_board_create_list_dropdown.html.haml

 .dropdown.gl-display-flex.gl-align-items-center.gl-ml-3#js-add-list
-  %button.gl-button.btn.btn-confirm.btn-confirm-secondary.js-new-board-list{ type: "button", data: board_list_data }
+  %button.gl-button.btn.btn-confirm.js-new-board-list{ type: "button", data: board_list_data }
     Add list
   .dropdown-menu.dropdown-extended-height.dropdown-menu-paging.dropdown-menu-right.dropdown-menu-issues-board-new.dropdown-menu-selectable.js-tab-container-labels
     = render partial: "shared/issuable/label_page_default", locals: { show_footer: true, show_create: true, show_boards_content: true, title: "Add list" }

changelogs/unreleased/273306-fy21q4-foundations-kr2-audit-and-update-buttons-on-projects-boards.yml

+---
+title: Update button variants on the project boards controller to better align with
+  the Pajamas Design System
+merge_request: 57129
+author:
+type: other

ee/app/views/shared/issuable/_board_create_list_dropdown.html.haml

@@ -3,7 +3,7 @@
 
 - if assignee_lists_available || milestone_lists_available
   .dropdown.boards-add-list.gl-ml-3.gl-display-flex.gl-align-items-center#js-add-list
-    %button.btn.gl-button.btn-confirm.btn-confirm-secondary.gl-display-flex.js-new-board-list{ type: "button", data: board_list_data }
+    %button.btn.gl-button.btn-confirm.gl-display-flex.js-new-board-list{ type: "button", data: board_list_data }
       %span Add list
       = sprite_icon('chevron-down', css_class: 'gl-ml-2 btn-success-board-list-chevron')
     .dropdown-menu.dropdown-menu-paging.dropdown-menu-right.dropdown-menu-issues-board-new.dropdown-menu-selectable.dropdown-menu-tabs.pt-0