feat: Implement application launcher with pinned apps functionality

- Added `AppItem` struct to represent application details.
- Implemented `collect_lnk_one_level` function to gather .lnk files from specified directories.
- Created `get_apps` command to retrieve applications from the Taskbar and Start Menu.
- Developed `launch_app` command to open applications.
- Introduced `get_app_icon` command to fetch application icons in base64 format.
- Added functionality to manage pinned applications with `get_pinned_apps` and `set_pinned_apps` commands.
- Implemented system tray with toggle window functionality.
- Created UI components for displaying application icons and tiles.
- Developed hooks for managing application state, drag-and-drop reordering, and search functionality.
- Styled components for a cohesive user interface.

src-tauri/src/tray.rs

@@ -0,0 +1,54 @@
+use tauri::{
+    menu::{Menu, MenuItem},
+    tray::{MouseButton, MouseButtonState, TrayIconBuilder, TrayIconEvent},
+    AppHandle, Manager,
+};
+
+pub fn toggle_window(app_handle: &AppHandle) {
+    if let Some(window) = app_handle.get_webview_window("main") {
+        let is_visible = window.is_visible().unwrap_or(false);
+        if is_visible {
+            let _ = window.hide();
+        } else {
+            let _ = window.show();
+            let _ = window.set_focus();
+        }
+    }
+}
+
+pub fn setup_tray(app: &tauri::App) -> Result<(), Box<dyn std::error::Error>> {
+    let show_i = MenuItem::with_id(app, "show", "Показати/Сховати", true, None::<&str>)?;
+    let quit_i = MenuItem::with_id(app, "quit", "Вийти", true, None::<&str>)?;
+    let menu = Menu::with_items(app, &[&show_i, &quit_i])?;
+
+    let default_icon = app
+        .default_window_icon()
+        .ok_or("default window icon missing")?
+        .clone();
+
+    TrayIconBuilder::new()
+        .icon(default_icon)
+        .menu(&menu)
+        .show_menu_on_left_click(false)
+        .on_tray_icon_event(|tray, event| match event {
+            TrayIconEvent::Click {
+                button: MouseButton::Left,
+                button_state: MouseButtonState::Up,
+                ..
+            } => {
+                let app_handle = tray.app_handle();
+                toggle_window(app_handle);
+            }
+            _ => {}
+        })
+        .on_menu_event(|app_handle, event| match event.id.as_ref() {
+            "quit" => std::process::exit(0),
+            "show" => {
+                toggle_window(app_handle);
+            }
+            _ => {}
+        })
+        .build(app)?;
+
+    Ok(())
+}