Error loading products if the server was offline

[dguglielmi-git]

When the process that shows the product list stopped, the message No products available will be shown, but this process will not update the status again, so even if we could recover the list of products, the system is not displaying such information.

Steps to reproduce the error:

• Stop the backend server
• Try to load the main page
• Wait until the spinner of the main screen stops
• Once we see the message that no products are available, Start the backend server.
• Wait until the backend server is up and running.
• Now that the backend server is running again, proceed with the login on the website as usual.
• After logging in, the list should be re-rendered.