Don't allow to modify answer's videos for started polls

Same rules that will apply for the answer itself should apply for the
attachments like videos, images, and/or documents.

spec/components/admin/poll/questions/answers/videos/table_actions_component_spec.rb

@@ -0,0 +1,23 @@
+require "rails_helper"
+
+describe Admin::Poll::Questions::Answers::Videos::TableActionsComponent, controller: Admin::BaseController do
+  before { sign_in(create(:administrator).user) }
+
+  it "displays the edit and destroy actions when the poll has not started" do
+    video = create(:poll_answer_video, poll: create(:poll, :future))
+
+    render_inline Admin::Poll::Questions::Answers::Videos::TableActionsComponent.new(video)
+
+    expect(page).to have_link "Edit"
+    expect(page).to have_button "Delete"
+  end
+
+  it "does not display the edit and destroy actions when the poll has started" do
+    video = create(:poll_answer_video, poll: create(:poll))
+
+    render_inline Admin::Poll::Questions::Answers::Videos::TableActionsComponent.new(video)
+
+    expect(page).not_to have_link "Edit"
+    expect(page).not_to have_button "Delete"
+  end
+end