Document .taurignore in develop section

[FabianLars]

This definitely needs to be documented for people using Rust workspace.

I agree but where would you expect to find this in the docs? Genuine question as we're currently rewriting the docs and i have no idea where to put this.

I would imagine a sub-section or a separate page under develop such as here:

https://beta.tauri.app/guides/develop/

Which is about the DX experience, including things like setting up IDEs for Tauri dev., where best to place shared env variables and keys, how to set up auto-reloads (where .taurignore fits), etc.

Originally posted by @boan-anbo in tauri-apps/tauri#4617 (comment)

[roniemartinez]

As discussed in Discord, include the files that are recommended to be ignored such as deny.toml (see tauri-apps/tauri#9258).