feat: allow ifchains and for loops

packages/autofmt/tests/samples/ifchain_forloop.rsx

@@ -0,0 +1,13 @@
+rsx! {
+    // Does this work?
+    for i in b {
+        // Hey it works?
+        div {}
+    }
+
+    // Some ifchain
+    if a > 10 {
+        //
+        rsx! { div {} }
+    }
+}