update dep + preference styles setup

src/components/window/Nav.tsx

@@ -3,7 +3,7 @@ import { RocketOne, Minus, Close, Square } from "@icon-park/react"
 import { /* relaunch,  */ exit } from "@tauri-apps/plugin-process"
 import { getCurrentWindow } from "@tauri-apps/api/window"
 // import { platform } from "@tauri-apps/plugin-os"
-import { useRouter } from "next/navigation"
+import { useRouter, usePathname  } from "next/navigation"
 
 const Nav = () => {
   const close = async () => {
@@ -32,12 +32,13 @@ const Nav = () => {
   //   await relaunch()
   // }
   const router = useRouter()
+  const pathname = usePathname()
 
   return (
     <nav className="absolute top-0 right-0 flex flex-row h-16 gap-0.5 p-4" data-tauri-drag-region>
       <button
         className="px-2 py-0 transition rounded hover:bg-zinc-200/80 active:scale-95"
-        onClick={() => router.push("/prepare")}
+        onClick={() => pathname !== "/prepare" ? router.push("/prepare") : router.back()}
       >
         <RocketOne size={16} />
       </button>