docs: instructions in how to debug effectively increase log level

[Maddiaa0]

Overview

Increasing the log verbosity of the sandbox can be extremely helpful to debug issues, for example it was only possible for @Philogy to debug #3177 by doing so, and it is not in the docs.

Furthermore, a section should be added to the docs outlining debug logs.
They are mentioned breifly at https://docs.aztec.network/dev_docs/contracts/syntax/functions#a-few-useful-inbuilt-oracles where it just links to their implementation in aztec-nr, however it does NOT show how to use them

solution

Add a section to getting started detailing how to increase the debugging level

[spypsy]

Think this may have been covered here? #3113