rename php container to app?

[schmunk42]

Since it contains the "whole" app including PHP and nginx.

[handcode]

Generally, I don't like "app" as a name, because nowadays everything is called "app".

In this particular case we talk about the PHP/Web container of the application stack, which consists of php, nginx, db, redis,..... So I find the name PHP appropriate and see no reason to change it ; -)