chore(deps): bump moment, prismjs, websocket-extensions via overrides

Supersedes stale Dependabot PRs #24, #22, #17 which no longer applied
after the gitbook build tooling was rebuilt.

- moment 2.24.0 -> 2.29.4
- prismjs 1.16.0 -> 1.27.0
- websocket-extensions 0.1.3 -> 0.1.4

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Prodesire

package-lock.json

@@ -16,5 +16,10 @@
     "gitbook-plugin-sharing-plus": "0.0.2",
     "gitbook-plugin-splitter": "0.0.8",
     "gitbook-plugin-tbfed-pagefooter": "0.0.1"
+  },
+  "overrides": {
+    "moment": "2.29.4",
+    "prismjs": "1.27.0",
+    "websocket-extensions": "0.1.4"
   }
 }