Re-add some build scripts

package.json

@@ -4,6 +4,10 @@
   "version": "2.0.0",
   "type": "module",
   "scripts": {
+    "postbuild:windows": "xcopy /E /H /C /I /Y \".\\src-tauri\\lang\" \".\\src-tauri\\target\\release\\lang\"",
+    "postbuild:linux": "cp -r \"./src-tauri/lang\" \"./lang\"",
+    "build:windows": "yarn tauri build",
+    "build:linux": "yarn tauri build",
     "dev": "vite",
     "build": "tsc && vite build",
     "preview": "vite preview",