Added time offset support for PGS subtitles.

package.json

@@ -106,6 +106,7 @@
     "jquery": "3.7.1",
     "jstree": "3.3.16",
     "libarchive.js": "2.0.2",
+    "libpgs": "0.2.1",
     "lodash-es": "4.17.21",
     "markdown-it": "14.1.0",
     "material-design-icons-iconfont": "6.7.0",
@@ -123,8 +124,7 @@
     "swiper": "11.1.12",
     "usehooks-ts": "3.1.0",
     "webcomponents.js": "0.7.24",
-    "whatwg-fetch": "3.6.20",
-    "libpgs": "0.2.0"
+    "whatwg-fetch": "3.6.20"
   },
   "optionalDependencies": {
     "sass-embedded": "1.77.8"