Make it easier to provide context to fullstack (#2515)

* pass context providers into server functions

* add an example for FromContext

* clean up DioxusRouterExt

* fix server function context

* fix fullstack desktop example

* fix axum auth example

* fix fullstack context type

* fix context providers path

packages/fullstack/src/lib.rs

@@ -55,8 +55,8 @@ pub mod prelude {
     #[cfg(feature = "server")]
     #[cfg_attr(docsrs, doc(cfg(feature = "server")))]
     pub use crate::server_context::{
-        extract, server_context, with_server_context, DioxusServerContext, FromServerContext,
-        ProvideServerContext,
+        extract, server_context, with_server_context, DioxusServerContext, FromContext,
+        FromServerContext, ProvideServerContext,
     };
 
     #[cfg(feature = "server")]