implement hot reloading for desktop

packages/hot-reload-macro/src/lib.rs

@@ -0,0 +1,7 @@
+use proc_macro::TokenStream;
+use syn::__private::quote::quote;
+
+#[proc_macro]
+pub fn hot_reload(_: TokenStream) -> TokenStream {
+    quote!(dioxus_hot_reload::init(core::env!("CARGO_MANIFEST_DIR"))).into()
+}