Text input (#143)

* update: iced 0.10.0

* wip: text input

* wip: text inputs with icons and buttons

* wip: improve text input

* refactor: text input styling

* chore: add scale factor

* chore(text_input): add winit example and do some cleanup

examples/cosmic/src/window/demo.rs

@@ -504,6 +504,10 @@ impl State {
             .size(20)
             .id(INPUT_ID.clone())
             .into(),
+            cosmic::widget::text_input("test", &self.entry_value)
+                .width(Length::Fill)
+                .on_input(Message::InputChanged)
+                .into(),
         ])
         .into()
     }