Feat: massive changes to definition of components

This change switches back to the original `ctx<props>` syntax for
commponents. This lets lifetime elision to remove the need to match
exactly which lifetime (props or ctx) gets  carried to the output. As
such, `Props` is currently required to be static. It *is* possible to
loosen this restriction, and will be done in the future, though only
through adding metadata about the props through the Props derive
macro. Implementing the IS_STATIC trait is unsafe, so the derive macro
will do it through some heuristics.

For now, this unlocks sharing vnodes from parents to children, enabling
pass-thru components, fragments, portals, etc.

packages/webview/examples/demo.rs

@@ -17,7 +17,7 @@ fn main() {
     .expect("Webview finished");
 }
 
-static Example: FC<()> = |ctx, _props| {
+static Example: FC<()> = |ctx| {
     ctx.render(html! {
         <div>
         <svg class="octicon octicon-star v-align-text-bottom"
@@ -36,7 +36,7 @@ static Example: FC<()> = |ctx, _props| {
         </div>
     })
 };
-// static Example: FC<()> = |ctx, _props| {
+// static Example: FC<()> = |ctx| {
 //     ctx.render(rsx! {
 //         div  {
 //             class: "flex items-center justify-center flex-col"