max size + better scrolling size fn

src/bin/test/main.rs

@@ -151,7 +151,7 @@ impl Client {
             })
             .add(&mut ui);
         let text_edit_scroll = (
-            msg_area,
+            msg_area.height(rest(1)),
             (
                 Rect::new(Color::WHITE.darker(0.9)),
                 (