Unify the warning system (#2649)

* unify the warning system

* fix VirtualDom::new warning with a component

* move warnings to dioxuslabs

* also allow writes in the component body when converting from T -> ReadOnlySignal<T>

* fix clippy from merge conflict

---------

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

packages/core/src/virtual_dom.rs

@@ -254,8 +254,15 @@ impl VirtualDom {
     /// ```
     ///
     /// Note: the VirtualDom is not progressed, you must either "run_with_deadline" or use "rebuild" to progress it.
-    pub fn new<F: Fn() -> Element + Clone + 'static>(app: F) -> Self {
-        Self::new_with_props(app, ())
+    pub fn new(app: fn() -> Element) -> Self {
+        Self::new_with_props(
+            move || {
+                use warnings::Warning;
+                // The root props don't come from a vcomponent so we need to manually rerun them sometimes
+                crate::properties::component_called_as_function::allow(app)
+            },
+            (),
+        )
     }
 
     /// Create a new VirtualDom with the given properties for the root component.
@@ -313,7 +320,7 @@ impl VirtualDom {
     }
 
     /// Create a new virtualdom and build it immediately
-    pub fn prebuilt<F: Fn() -> Element + Clone + 'static>(app: F) -> Self {
+    pub fn prebuilt(app: fn() -> Element) -> Self {
         let mut dom = Self::new(app);
         dom.rebuild_in_place();
         dom