Use head elements and new manganis syntax in examples (#2688)

* use head elements and new manganis syntax in examples
* only enable desktop workspace example scraping during a dioxus release

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

examples/crm.rs

@@ -11,8 +11,6 @@
 
 use dioxus::prelude::*;
 
-const STYLE: &str = asset!(file("./examples/assets/crm.css"));
-
 fn main() {
     LaunchBuilder::new()
         .with_cfg(desktop!({
@@ -22,13 +20,13 @@ fn main() {
         }))
         .launch(|| {
             rsx! {
-                link {
+                head::Link {
                     rel: "stylesheet",
-                    href: "https://unpkg.com/purecss@2.0.6/build/pure-min.css",
+                    href: asset!("https://unpkg.com/purecss@2.0.6/build/pure-min.css"), 
                     integrity: "sha384-Uu6IeWbM+gzNVXJcM9XV3SohHtmWE+3VGi496jvgX1jyvDTXfdK+rfZc8C1Aehk5",
                     crossorigin: "anonymous"
                 }
-                link { rel: "stylesheet", href: STYLE }
+                head::Link { rel: "stylesheet", href: asset!("./examples/assets/crm.css") }
                 h1 { "Dioxus CRM Example" }
                 Router::<Route> {}
             }