feat: playground add submenu

package.json

@@ -36,9 +36,11 @@
     "crypto-js": "^4.2.0",
     "dayjs": "^1.11.11",
     "echarts": "^5.5.1",
+    "epubjs": "^0.3.93",
     "has-ansi": "^5.0.1",
     "highlight.js": "^11.10.0",
     "jotai": "^2.8.4",
+    "jszip": "^3.10.1",
     "localforage": "^1.10.0",
     "lodash": "^4.17.21",
     "mammoth": "^1.8.0",
@@ -46,6 +48,7 @@
     "numeral": "^2.0.6",
     "overlayscrollbars": "^2.10.0",
     "overlayscrollbars-react": "^0.5.6",
+    "pdfjs-dist": "^4.7.76",
     "query-string": "^9.0.0",
     "rc-resize-observer": "^1.4.0",
     "rc-virtual-list": "^3.14.8",
@@ -78,6 +81,7 @@
     "prettier-plugin-packagejson": "^2.5.0",
     "prettier-plugin-two-style-order": "^1.0.1",
     "typescript": "^5.4.5",
-    "url-loader": "^4.1.1"
+    "url-loader": "^4.1.1",
+    "webpack-bundle-analyzer": "^4.10.2"
   }
 }