Feature: Introduce Super Admins (#705)

* Feature: Introduce Super Admins

- added new devise model for super user
- added administrate gem
- sample dashboards for users and accounts

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

spec/controllers/super_admin_controller_spec.rb

@@ -0,0 +1,46 @@
+require 'rails_helper'
+
+RSpec.describe 'Super Admin', type: :request do
+  let(:super_admin) { create(:super_admin) }
+
+  describe 'request to /super_admin' do
+    context 'when the super admin is unauthenticated' do
+      it 'redirects to signin page' do
+        get '/super_admin/'
+        expect(response).to have_http_status(:redirect)
+        expect(response.body).to include('sign_in')
+      end
+
+      it 'signs super admin in and out' do
+        sign_in super_admin
+        get '/super_admin'
+        expect(response).to have_http_status(:success)
+        expect(response.body).to include('New user')
+
+        sign_out super_admin
+        get '/super_admin'
+        expect(response).to have_http_status(:redirect)
+      end
+    end
+  end
+
+  describe 'request to /super_admin/sidekiq' do
+    context 'when the super admin is unauthenticated' do
+      it 'redirects to signin page' do
+        get '/monitoring/sidekiq'
+        expect(response).to have_http_status(:not_found)
+        expect(response.body).to include('sign_in')
+      end
+
+      it 'signs super admin in and out' do
+        sign_in super_admin
+        get '/monitoring/sidekiq'
+        expect(response).to have_http_status(:success)
+
+        sign_out super_admin
+        get '/monitoring/sidekiq'
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+  end
+end