cut out a number of changes from the hr PR (#2580)

examples/file_explorer.rs

@@ -28,7 +28,7 @@ fn app() -> Element {
             link { href:"https://fonts.googleapis.com/icon?family=Material+Icons", rel:"stylesheet" }
             header {
                 i { class: "material-icons icon-menu", "menu" }
-                h1 { "Files: ", {files.read().current()} }
+                h1 { "Files: " {files.read().current()} }
                 span { }
                 i { class: "material-icons", onclick: move |_| files.write().go_up(), "logout" }
             }