polish: clean up the examples and move autofmt sample into dedicated file

packages/autofmt/tests/sample.rs

@@ -0,0 +1,23 @@
+const SRC: &str = include_str!("./samples/all.rs");
+
+fn body() -> &'static str {
+    &SRC[6..SRC.len() - 3]
+}
+
+fn unindented_body() -> String {
+    body()
+        .lines()
+        .map(|line| match line.strip_prefix("    ") {
+            Some(line) => line,
+            None => line,
+        })
+        .collect::<Vec<_>>()
+        .join("\n")
+}
+
+#[test]
+fn way_and_back() {
+    let blocks = dioxus_autofmt::fmt_file(SRC).into_iter().next().unwrap();
+
+    println!("{}", blocks.formatted);
+}