Add filter to show all budgets in admin

app/controllers/admin/budgets_controller.rb

@@ -4,7 +4,7 @@ class Admin::BudgetsController < Admin::BaseController
   include FeatureFlags
   feature_flag :budgets
 
-  has_filters %w[open finished], only: :index
+  has_filters %w[all open finished], only: :index
 
   before_action :load_budget, except: [:index, :new, :create]
   before_action :load_staff, only: [:new, :create, :edit, :update, :show]

config/locales/en/admin.yml

@@ -70,6 +70,7 @@ en:
         new_link: Create new budget
         filter: Filter
         filters:
+          all: All
           open: Open
           finished: Finished
         help: "Participatory budgets allow citizens to propose and decide directly how to spend part of the budget, with monitoring and rigorous evaluation of proposals by the institution."

config/locales/es/admin.yml

@@ -70,6 +70,7 @@ es:
         new_link: Crear nuevo presupuesto
         filter: Filtro
         filters:
+          all: Todos
           open: Abiertos
           finished: Terminados
         help: "Los presupuestos participativos permiten que los ciudadanos propongan y decidan de manera directa cómo gastar parte del presupuesto, con un seguimiento y evaluación riguroso de las propuestas por parte de la institución."

spec/system/admin/budgets_spec.rb

@@ -77,15 +77,15 @@ describe "Admin budgets", :admin do
       expect(page).not_to have_content(finished_budget.name)
     end
 
-    scenario "Open filter is properly highlighted" do
-      filters_links = { "current" => "Open", "finished" => "Finished" }
+    scenario "Filters are properly highlighted" do
+      filters_links = { "all" => "All", "open" => "Open", "finished" => "Finished" }
 
       visit admin_budgets_path
 
       expect(page).not_to have_link(filters_links.values.first)
       filters_links.keys.drop(1).each { |filter| expect(page).to have_link(filters_links[filter]) }
 
-      filters_links.each_pair do |current_filter, link|
+      filters_links.each do |current_filter, link|
         visit admin_budgets_path(filter: current_filter)
 
         expect(page).not_to have_link(link)