Fix: #2604, Fix: #2240, Fix: #2341, Fix #1355 - Better error handling and and spaces handling in autofmt (#2736)

* add new autofmt sample
* Feat: implement rustfmt::skip support for rsx
* generally improve error handling with better expect messages
* wip: nested rsx formatting and expression formatting
* nested rsx formatting works
* collapse autofmt crate
* cast indent through macros
* use proper whitespace
* no more eating comments!
* Use proper error handling

packages/autofmt/src/buffer.rs

@@ -1,8 +1,5 @@
 //! The output buffer that supports some helpful methods
 //! These are separate from the input so we can lend references between the two
-//!
-//!
-//!
 
 use std::fmt::{Result, Write};