Refactor domain force delete, add "death" force delete mailer template

#268

spec/views/admin/domains/edit.html.erb_spec.rb

@@ -0,0 +1,22 @@
+require 'rails_helper'
+
+RSpec.describe 'admin/domains/edit' do
+  let(:domain) { build_stubbed(:domain) }
+  let(:domain_presenter) { DomainPresenter.new(domain: domain, view: view) }
+
+  before :example do
+    allow(DomainPresenter).to receive(:new).and_return(domain_presenter)
+    allow(view).to receive(:force_delete_templates)
+
+    assign(:domain, domain)
+
+    stub_template '_form' => ''
+    stub_template '_force_delete_dialog' => ''
+  end
+
+  it 'has force_delete_toggle_btn' do
+    expect(domain_presenter).to receive(:force_delete_toggle_btn).and_return('force_delete_toggle_btn')
+    render
+    expect(rendered).to have_content('force_delete_toggle_btn')
+  end
+end