Implementing metrics into the status page

[Ionys320]

This is a WIP but allows you to monitor the changes related to issue #56.

This feature is actively using Alpine. Maybe some parts could be improved to use Laravel in a better way (for example, avoid using <?php echo json_encode($metric); ?> in the code).

No issue is currently know.

Please note that for debugging purposes, each metric is displayed twice. The reason is that by default, we only have one metric. It allows testing the individual component with two different instances.

Screen of the current version: