feat: implement custom window controls and replace header bar with title bar

- Add window handlers for minimize, maximize, close, and check if maximized in ipcMain.
- Update preload script to use new window control IPC events.
- Refactor window service to remove old IPC event handlers and use new handlers.
- Remove old HeaderBar and DragRegion components, replacing them with a new TitleBar component.
- Update Layout component to use TitleBar instead of HeaderBar.
- Remove useWinManager hook as its functionality is now integrated into TitleBar.
- Update login page to remove HeaderBar and adjust layout accordingly.
- Update constants to remove old window IPC events.
- Update package dependencies to replace @iconify/vue with @lucide/vue.

electron/preload/index.ts

@@ -8,11 +8,13 @@ const api: WindowApi = {
     open: (url: string) => ipcRenderer.invoke('external-open', url)
   },
 
-  closeWindow: () => ipcRenderer.send(IPC_EVENTS.WINDOW_CLOSE),
-  minimizeWindow: () => ipcRenderer.send(IPC_EVENTS.WINDOW_MINIMIZE),
-  maximizeWindow: () => ipcRenderer.send(IPC_EVENTS.WINDOW_MAXIMIZE),
-  onWindowMaximized: (callback: (isMaximized: boolean) => void) => ipcRenderer.on(IPC_EVENTS.WINDOW_MAXIMIZE + 'back', (_, isMaximized) => callback(isMaximized)),
-  isWindowMaximized: () => ipcRenderer.invoke(IPC_EVENTS.IS_WINDOW_MAXIMIZED),
+  platform: process.platform,
+
+  windowMinimize: () => ipcRenderer.invoke('window:minimize'),
+  windowMaximize: () => ipcRenderer.invoke('window:maximize'),
+  windowClose: () => ipcRenderer.invoke('window:close'),
+  windowIsMaximized: () => ipcRenderer.invoke('window:isMaximized'),
+
   viewIsReady: () => ipcRenderer.send(IPC_EVENTS.RENDERER_IS_READY),
 
   app: {