Add local node support for tutorials

[TucksonDev]

To add local node support for all tutorials, they all need to be updated. The main reason for this is that they might all use different SDK versions, so we can't add the local node support in a common package (like arb-shared-dependencies).

Here I show how this is done for eth-deposit.

Note (FYI):

• Local network configuration is not in the main networks array of the SDK but there's a function that needs to be called to add that config.

[TucksonDev]

Added support for all tutorials. Also added a comment to describe the reasoning of calling that method. Tested all tutorials on a local node.