Large structure update

src/main.rs

@@ -1,29 +1,13 @@
-use osui::{oml, ui::*, App, Component};
+use osui::{oml, ui::*, App};
 
 fn main() {
-    let mut app = App::new();
-    app.set_component(app_elem());
-    app.run();
+    let mut app_screen = App::new();
+    app_screen.set_component(app());
+    app_screen.run();
 }
 
-fn onclick(c: &mut Component) {
-    if c.clicked {
-        c.expr = "Clicked!".to_string();
-    } else {
-        c.expr = "click me".to_string()
-    }
-}
-
-fn app_elem() -> Component {
+fn app() -> Box<Text> {
     oml!(
-        tab {
-            div {
-                text("Hello, World!";)
-            }
-
-            div {
-                button("click me"; toggle = false, on_click = onclick)
-            }
-        }
+        text("Hello, World!";)
     )
 }