[skip ci] workflow使用pnpm

modules/web/package.json

@@ -2,6 +2,10 @@
   "name": "legado-web",
   "version": "1.0.0",
   "private": true,
+  "engines": {
+    "node": ">=16",
+    "pnpm": ">=8"
+  },
   "scripts": {
     "dev": "vite",
     "build": "vite build",

modules/web/src/views/SourceEditor.vue

@@ -9,7 +9,6 @@
 import bookSourceConfig from "@/utils/bookSourceEditConfig.js";
 import rssSourceConfig from "@/utils/rssSourceEditConfig.js";
 import "@/assets/main.css";
-import "element-plus/theme-chalk/dark/css-vars.css";
 
 const config = ref({});