Change context api to panic with nice error message

packages/router/src/hooks/use_router.rs

@@ -9,5 +9,5 @@ pub fn use_router() -> RouterContext {
 
 /// Aquire the router without subscribing to updates.
 pub fn router() -> RouterContext {
-    dioxus_lib::prelude::consume_context().unwrap()
+    dioxus_lib::prelude::consume_context()
 }