After destroy question redirect to his poll show page

After removing a question from a poll it makes more sense to redirect to
your own poll show page in order to manage their questions.

Currently it is redirecting to the questions index page where all the
questions from all the polls are displayed and takes you completely out
of the context of the poll you are in.

In the future we will remove this index question page.

app/controllers/admin/poll/questions_controller.rb

@@ -48,7 +48,7 @@ class Admin::Poll::QuestionsController < Admin::Poll::BaseController
     else
       notice = t("flash.actions.destroy.error")
     end
-    redirect_to admin_questions_path, notice: notice
+    redirect_to admin_poll_path(@question.poll), notice: notice
   end
 
   private

spec/system/admin/poll/questions_spec.rb

@@ -147,8 +147,9 @@ describe "Admin poll questions", :admin do
       end
     end
 
-    expect(page).not_to have_content(question1.title)
-    expect(page).to have_content(question2.title)
+    expect(page).not_to have_content question1.title
+    expect(page).to have_content question2.title
+    expect(page).to have_current_path admin_poll_path(poll)
   end
 
   context "Poll select box" do