Remove implicit optional dependency features (#2512)

* remove implicit optional dependency features

* switch to new features in desktop, router and signals crates

packages/desktop/src/launch.rs

@@ -67,7 +67,7 @@ pub fn launch_virtual_dom_blocking(virtual_dom: VirtualDom, desktop_config: Conf
 
 /// Launches the WebView and runs the event loop, with configuration and root props.
 pub fn launch_virtual_dom(virtual_dom: VirtualDom, desktop_config: Config) -> ! {
-    #[cfg(feature = "tokio")]
+    #[cfg(feature = "tokio_runtime")]
     tokio::runtime::Builder::new_multi_thread()
         .enable_all()
         .build()
@@ -76,7 +76,7 @@ pub fn launch_virtual_dom(virtual_dom: VirtualDom, desktop_config: Config) -> !
             launch_virtual_dom_blocking(virtual_dom, desktop_config)
         }));
 
-    #[cfg(not(feature = "tokio"))]
+    #[cfg(not(feature = "tokio_runtime"))]
     launch_virtual_dom_blocking(virtual_dom, desktop_config);
 
     unreachable!("The desktop launch function will never exit")