Added mut Docuemnt and example menu

src/main.rs

@@ -1,4 +1,42 @@
-use osui::{examples::login_example::App, prelude::*};
+use osui::{examples, prelude::*};
 fn main() {
     launch!(App);
 }
+
+#[component]
+pub fn App() {
+    rsx! {
+        @SetStyle(app_style())
+
+        text { static "Select an example" }
+
+        button { class: "example", on_click: fn(_, _, document) {
+            document.clear_css();
+            document.draw(examples::counter_example::App::default().create_element());
+        }, static "Counter" }
+
+        button { class: "example", on_click: fn(_, _, document) {
+            document.clear_css();
+            document.draw(examples::todo_example::App::default().create_element());
+        }, static "Todo" }
+
+        button { class: "example", on_click: fn(_, _, document) {
+            document.clear_css();
+            document.draw(examples::login_example::App::default().create_element());
+        }, static "Login" }
+    }
+}
+
+pub fn app_style() -> Css {
+    css! {
+        "example" {
+            outline: true,
+            y: Auto,
+            x: 0 px,
+        }
+        "example": "hover" {
+            color: Blue,
+            outline_color: Red,
+        }
+    }
+}