Since symfony/dependency-injection 6.4: "Symfony\Component\DependencyInjection\ContainerAwareTrait" is deprecated

Tests are green, now ready for review.

Injecting the full container like that is a bad practice, let's see if we can use a service collector instead.

Moved to a locator and automatically flagged all handlers as non-shared. Will then see if we can make them private.

Okay that seemed to work, now let's try making all handlers private.

Yeah that didn't work out well, screw it. We got a service locator and some DX QOL by no longer having to set the shared flag, that's good enough.

Automatically closed - issue fixed for 2 weeks with no activity.