Refactor UI components for layout management and results display

- Replaced the `renderizar` function in `layouts.rs` with a new `view` function using Iced for a more modern UI approach.
- Introduced a new `view_secao_layouts` function to handle the display of saved layouts.
- Updated the `resultado.rs` file to use Iced for rendering the results screen, including buttons for actions and pagination controls.
- Created a new `selecionar_aba.rs` file for the selection of XLSX sheet tabs, implementing a preview feature.
- Removed old rendering functions and replaced them with Iced components for better performance and maintainability.
- Added design tokens in `design_tokens.json` for consistent styling across the application.
- Created a mockup HTML file to visualize the UI design.

src/main.rs

@@ -7,39 +7,12 @@ mod ui;
 
 use ui::app::App;
 
-fn load_icon() -> Option<egui::viewport::IconData> {
-    let bytes = include_bytes!("../icon.ico");
-    let img = image::load_from_memory(bytes).ok()?.into_rgba8();
-    let (width, height) = img.dimensions();
-    Some(egui::viewport::IconData {
-        rgba: img.into_raw(),
-        width,
-        height,
-    })
-}
-
-fn main() -> eframe::Result {
-    let mut viewport = egui::ViewportBuilder::default()
-        .with_title("Comparador de Notas")
-        .with_inner_size([1024.0, 768.0])
-        .with_min_inner_size([800.0, 600.0]);
-
-    if let Some(icon) = load_icon() {
-        viewport = viewport.with_icon(std::sync::Arc::new(icon));
-    }
-
-    let native_options = eframe::NativeOptions {
-        viewport,
-        ..Default::default()
-    };
-
-    eframe::run_native(
-        "Comparador de Notas",
-        native_options,
-        Box::new(|_cc| {
-            let mut app = App::default();
-            app.inicializar();
-            Ok(Box::new(app))
-        }),
-    )
+fn main() -> iced::Result {
+    iced::application("Comparador de Notas", App::update, App::view)
+        .window(iced::window::Settings {
+            size: iced::Size::new(1024.0, 768.0),
+            min_size: Some(iced::Size::new(800.0, 600.0)),
+            ..Default::default()
+        })
+        .run_with(App::new)
 }