Limiting queries with a pager

We can add and list messages from the database. But we must limit the amount of information a user can see. A good practice is to provide the user with a pager to move through all the data.

Follow the given steps to add a simple pager:

1. Modify the template /app/website/templates/components/_list-messages.html to add a simple pager divided into two buttons (forward and back):

   {% for message in messages %}
       <article class="message" id="message--{{ 
           message.id }}">
           <h2 class="message__author">{{ message.author 
           }}</h2>
           <p class="message__text">{{ message.text }}
           </p>
           <...