feat: basic application library grid view

examples/app_library/main.rs

@@ -0,0 +1,34 @@
+mod application_row;
+mod window;
+
+use gtk::gdk::Display;
+use gtk::prelude::*;
+use gtk4 as gtk;
+
+use window::Window;
+
+fn main() {
+    let application = gtk::Application::new(
+        Some("com.github.gtk-rs.examples.apps_launcher"),
+        Default::default(),
+    );
+
+    application.connect_activate(|app| {
+        let provider = gtk::CssProvider::new();
+        provider.load_from_data(include_bytes!("style.css"));
+        gtk::StyleContext::add_provider_for_display(
+            &Display::default().expect("Error initializing gtk css provider."),
+            &provider,
+            gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
+        );
+        new_build_ui(app);
+    });
+
+    application.run();
+}
+
+fn new_build_ui(app: &gtk::Application) {
+    // Create a new custom window and show it
+    let window = Window::new(app);
+    window.show();
+}