Add Budget Investment winners filter on admin list view and controller

app/controllers/admin/budget_investments_controller.rb

@@ -3,7 +3,7 @@ class Admin::BudgetInvestmentsController < Admin::BaseController
   feature_flag :budgets
 
   has_filters(%w{valuation_open without_admin managed valuating valuation_finished
-                 valuation_finished_feasible selected all},
+                 valuation_finished_feasible selected winners all},
               only: [:index, :toggle_selection])
 
   before_action :load_budget

app/views/admin/budget_investments/_investments.html.erb

@@ -12,6 +12,7 @@
       <th><%= t("admin.budget_investments.index.table_feasibility") %></th>
       <th class="text-center"><%= t("admin.budget_investments.index.table_valuation_finished") %></th>
       <th class="text-center"><%= t("admin.budget_investments.index.table_selection") %></th>
+      <th class="text-center"><%= t("admin.budget_investments.index.table_winner") %></th>
     </tr>
   </thead>
 
@@ -74,6 +75,9 @@
           <% end %>
         <% end %>
       </td>
+      <td class="small text-center">
+        <%= investment.winner? ? t('shared.yes'): t('shared.no') %>
+      </td>
     </tr>
   <% end %>
 </table>