feat: Automatically detect storage

[Erb3]

Is your feature request related to a problem? Please describe.
QoL feature, option to automatically detect storage devices.

Describe the solution you'd like
The storage key can be set to auto instead of a table, and it will local storage = { peripheral.find("inventory") }

Describe alternatives you've considered
Just telling people to write storage = { peripheral.find("inventory") } in their config, which works without any changes to the codebase.

Additional context
Requested by a player on SwitchCraft.