Merge branch 'ce-mw-productivity-analytics-filter-bar' into 'master'

(CE Port) Add filters for Productivity Analytics

See merge request gitlab-org/gitlab-ce!31097

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

 - type = local_assigns.fetch(:type)
 - board = local_assigns.fetch(:board, nil)
-- block_css_class = type != :boards_modal ? 'row-content-block second-block' : ''
+- is_not_boards_modal_or_productivity_analytics = type != :boards_modal && type != :productivity_analytics
+- block_css_class = is_not_boards_modal_or_productivity_analytics ? 'row-content-block second-block' : ''
 - user_can_admin_list = board && can?(current_user, :admin_list, board.parent)
 
 .issues-filters{ class: ("w-100" if type == :boards_modal) }
@@ -155,5 +156,5 @@
               - if @project
                 #js-add-issues-btn.prepend-left-10{ data: { can_admin_list: can?(current_user, :admin_list, @project) } }
             #js-toggle-focus-btn
-          - elsif type != :boards_modal
+          - elsif is_not_boards_modal_or_productivity_analytics
             = render 'shared/issuable/sort_dropdown'