Update categories_order.html.erb

try

app/views/admin/archive_files/categories_order.html.erb

@@ -1 +1,10 @@
-<%= @categories.inspect %>
+<% all_locales = i18n.locales %>
+<% count = all_locales.length %>
+<% @cats.each do |cat| %>
+    <% all_locales.each_with_index do |locale,index| %>
+    <%= "#{cat[0].title[locale]}" %>
+    <%= index!=(count-1) ? "/" : ":" %>
+    <% end %>
+    <input type="number" name="sort_number-<%= cat[0].id %>" value="<%= cat[1].to_s %>">
+    <br>
+<% end %>