add trashable concern on user

app/admin/users.rb

@@ -1,6 +1,30 @@
 ActiveAdmin.register User do
   permit_params :email, :name, roles: []
 
+  scope :all, default: true
+  scope :trashed
+
+  controller do
+    def show
+      @user = User.unscoped.find_by!(permitted_params[:user])
+    end
+
+    def edit
+      @user = User.unscoped.find_by!(permitted_params[:user])
+    end
+
+    def destroy
+      @user = User.unscoped.find(permitted_params[:id])
+
+      if @user.deleted_at
+        redirect_to admin_users_path, notice: t('active_admin.user.already_destroyed')
+      else
+        @user.destroy
+        redirect_to admin_users_path, notice: t('active_admin.user.succesfully_destroyed')
+      end
+    end
+  end
+
   index do
     selectable_column
     id_column
@@ -8,6 +32,8 @@ ActiveAdmin.register User do
     column :name
     column :created_at
     actions
+
+    actions
   end
 
   filter :email