Chore: hoist example projects for discoverability (#2959)

* hoist example projects, remove oidc

* move over example projects from the separate repo

* Update ecommerce site to the latest version of dioxus

* update wifi scanner to 0.5

* drop the chatbot example; might be restored in a separate PR

---------

Co-authored-by: Evan Almloff <evanalmloff@gmail.com>

examples/pwa/src/main.rs

@@ -0,0 +1,21 @@
+use dioxus::prelude::*;
+
+fn main() {
+    // init debug tool for WebAssembly
+    wasm_logger::init(wasm_logger::Config::default());
+    console_error_panic_hook::set_once();
+
+    launch(app);
+}
+
+fn app() -> Element {
+    rsx! (
+        div { style: "text-align: center;",
+            h1 { "🌗 Dioxus 🚀" }
+            h3 { "Frontend that scales." }
+            p {
+                "Dioxus is a portable, performant, and ergonomic framework for building cross-platform user interfaces in Rust."
+            }
+        }
+    )
+}