Add a ton of comments to rsx/hotreload, add snapshot testing, refactor a bit to simplify the crate (#2130)

Merge dynamic context and dynamic mapping, clean up the rsx hotreload logic, and add location data to the Rsx objects

packages/rsx/tests/valid/nested.old.rsx

@@ -0,0 +1,9 @@
+use dioxus::prelude::*;
+
+pub fn CoolChild() -> Element {
+    rsx! {
+        ForLoop {
+            div { "asasddasdasd" }
+        }
+    }
+}