Chore: Add Account Users to Admin Panel (#859)

- Show errors on login page
- Dashboard for admin panel

app/views/super_admin/application/_navigation.html.erb

@@ -12,9 +12,8 @@ as defined by the routes in the `admin/` namespace
 
 
 <nav class="navigation" role="navigation">
-  <%= link_to "Back to app", root_url, class: "button button--alt" %>
-  <%= link_to "Logout", super_admin_logout_url , class: "button button--alt" %>
-
+  <%= link_to "Dashboard", super_admin_root_url, class: "button button--alt" %>
+ 
   <% Administrate::Namespace.new(namespace).resources.each do |resource| %>
     <%= link_to(
       display_resource_name(resource),
@@ -24,4 +23,8 @@ as defined by the routes in the `admin/` namespace
   <% end %>
 
   <%= link_to "Sidekiq", sidekiq_web_url , class: "button" %>
+  
+  <div style="margin-top: 300px;">
+    <%= link_to "Logout", super_admin_logout_url , class: "button button--alt" %>
+  </div>
 </nav>

app/views/super_admin/devise/sessions/new.html.erb

@@ -17,6 +17,9 @@
           <div class="small-12 medium-4 column">
             <%= form_for(resource, as: resource_name, url: '/super_admin/sign_in', html: { class: 'login-box column align-self-top'}) do |f| %>
               <div class="column log-in-form">
+                <% if flash[:error].present? %>
+                <div data-alert class="alert-box warning"><%= flash[:error] %></div>
+                <% end %>
                 <label>
                   Email
                   <%= f.email_field :email, autofocus: true, autocomplete: "email", placeholder: "Email eg: someone@example.com" %>