refactor(cli): added multiple nested errors support

[Andrew15-5]

Before the top-level error message would print the dependent error message. Now multiple nested errors can be shown (with anyhow context).

Example (for demonstrative purposes only):

Before:

Error: 🚫 Serving project failed: Couldn't copy the server binary from "/tmp/fullstack/.dioxus/ssr/debug/fullstack" to "/tmp/fullstack/dist/fullstack". Maybe the server process (fullstack) wasn't killed and is still running.

After:

Error: 🚫 Serving project failed:

Caused by:
    0: Couldn't copy the server binary from "/tmp/fullstack/.dioxus/ssr/debug/fullstack" to "/tmp/fullstack/dist/fullstack". Maybe the server process (fullstack) wasn't killed and is still running.
    1: Text file busy (os error 26)

[ealmloff]

Those errors look much easier to debug, thank you!