add template submissions filters

config/routes.rb

@@ -91,6 +91,7 @@ Rails.application.routes.draw do
   resources :template_sharings_testing, only: %i[create]
   resources :templates, only: %i[index], controller: 'templates_dashboard'
   resources :templates, only: %i[new create edit update show destroy] do
+    get :filter, on: :collection
     resource :debug, only: %i[show], controller: 'templates_debug' if Rails.env.development?
     resources :documents, only: %i[create], controller: 'template_documents'
     resources :restore, only: %i[create], controller: 'templates_restore'