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/tests/samples/basic_expr.rsx

@@ -0,0 +1,8 @@
+fn itworks() {
+    rsx! {
+        div {
+            "hi"
+            {children}
+        }
+    }
+}