Add form fields to set the colours and the sections for the banner

Add migrations to store the information in the database

app/views/admin/banners/index.html.erb

@@ -37,11 +37,11 @@
       </tr>
       <tr>
         <td colspan="3">
-          <div class="<%= banner.style %>">
+          <div class="<%= banner.style %>" style="background-color:<%= banner.background_color %>">
             <div class="<%= banner.image %>">
               <%= link_to banner.target_url do %>
-                <h2><%= banner.title %></h2>
-                <h3><%= banner.description %></h3>
+                <h2 style="color:<%= banner.font_color %>"><%= banner.title %></h2>
+                <h3 style="color:<%= banner.font_color %>"><%= banner.description %></h3>
               <% end %>
             </div>
           </div>
@@ -51,4 +51,4 @@
   </table>
 <% end %>
 
-<%= paginate @banners %>
+<%= paginate @banners %>