feat(vite.config.ts): add wailsjs alias for improved frontend module resolution

frontend/vite.config.ts

@@ -17,6 +17,7 @@ export default defineConfig(({ mode }) => ({
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),
+      "wailsjs": path.resolve(__dirname, "./wailsjs"),
     },
   },
 }));