- improvement of marked editor in eveai_chat_client by modernising options approach

- removal of old and obsolete HTML files
- change of package.json to point to a specific version of marked

nginx/package.json

@@ -6,7 +6,7 @@
     "datatables.net": "^2.3.1",
     "highlight.js": "^11.11.1",
     "jquery": "^3.7.1",
-    "marked": "^16.0.0",
+    "marked": "16.3.0",
     "nouislider": "^15.8.1",
     "parallax": "^0.0.0",
     "prismjs": "^1.30.0",