Fix cargo test and a number of little cleanup bugs

packages/autofmt/tests/samples/immediate_expr.rsx

@@ -1,4 +1,4 @@
 fn it_works() {
-    rsx!({()}))
+    rsx!({()})
 }
 

packages/autofmt/tests/samples/long.rsx

@@ -37,5 +37,5 @@ pub fn Explainer<'a>(
             {left},
             {right}
         }
-    })
+    }
 }

packages/autofmt/tests/samples/messy_indent.rsx

@@ -9,5 +9,5 @@ fn SaveClipboard() -> Element {
 
     rsx! {
         div { "hello world", "hello world", "hello world" }
-    })
+    }
 }

packages/autofmt/tests/samples/reallylong.rsx

@@ -11,5 +11,5 @@ pub static Icon3: Component<()> = |cx| {
             path { d: "M20 21v-2a4 4 0 00-4-4H8a4 4 0 00-4 4v2" }
             circle { cx: "12", cy: "7", r: "4" }
         }
-    })
+    }
 };

packages/autofmt/tests/samples/trailing_expr.rsx

@@ -3,5 +3,5 @@ fn it_works() {
         div {
             span { "Description: ", {package.description.as_deref().unwrap_or("❌❌❌❌ missing")} }
         }
-    })
+    }
 }