feat: refactor main and preload scripts, update window service logic, enhance TitleBar component, and adjust login page layout

src/pages/Login/index.tsx

@@ -144,7 +144,9 @@ export default function LoginPage() {
         />
       ) : null}
 
-      <TitleBar variant="light" />
+      <div className="relative z-20">
+        <TitleBar variant="light" controlsTheme="white" />
+      </div>
 
       <main
         className={['relative z-10 box-border flex flex-auto pl-2 pr-2 pb-2', platform !== 'linux' ? 'pt-2' : 'pt-11'].join(' ')}