Setup haml-lint CI with todo config (#23524)

app/views/filters/_filter_fields.html.haml

@@ -35,6 +35,6 @@
         = render 'keyword_fields', f: keyword
     %tfoot
       %tr
-        %td{ colspan: 3}
+        %td{ colspan: 3 }
           = link_to_add_association f, :keywords, class: 'table-action-link', partial: 'keyword_fields', 'data-association-insertion-node': '.keywords-table tbody', 'data-association-insertion-method': 'append' do
             = safe_join([fa_icon('plus'), t('filters.edit.add_keyword')])

app/views/filters/index.html.haml

@@ -5,7 +5,7 @@
   = link_to t('filters.new.title'), new_filter_path, class: 'button'
 
 - if @filters.empty?
-  %div.muted-hint.center-text= t 'filters.index.empty'
+  .muted-hint.center-text= t 'filters.index.empty'
 - else
   .applications-list
     = render partial: 'filter', collection: @filters