feat: version 2.9.1 -- resaltado de sintaxis en bloques de codigo de documentos .md

Los bloques de codigo dentro de un .md visto en Documentos ahora tienen colores de token
(highlight.js + marked-highlight), con el tema "Visual Studio" claro/oscuro para que se vea
parecido a VSCode y se adapte solo al tema de la app. Se usa highlight.js/lib/core y solo se
registran los lenguajes esperados en este proyecto (js/ts, bash, json, python, sql, yaml,
html/xml, css, ini, dockerfile, markdown) para no inflar el bundle con el paquete completo.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend/package-lock.json

@@ -1,16 +1,18 @@
 {
   "name": "project-linkedcorp-frontend",
-  "version": "2.8.13",
+  "version": "2.9.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "project-linkedcorp-frontend",
-      "version": "2.8.13",
+      "version": "2.9.0",
       "dependencies": {
         "dompurify": "^3.4.16",
+        "highlight.js": "^11.12.0",
         "lucide-react": "^0.462.0",
         "marked": "^18.1.0",
+        "marked-highlight": "^2.2.4",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
         "react-router-dom": "^7.18.3",
@@ -4392,6 +4394,15 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/highlight.js": {
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-11.12.0.tgz",
+      "integrity": "sha512-nbfWpyRMcMrPMmDwJB+dhX/eiaPKtc2RB+0QZskqJ3WjRA/FDS0e9hZrx8EC/lbEv8gXy98FcDbNa/dspAaJMg==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/human-signals": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz",
@@ -5069,6 +5080,15 @@
         "node": ">= 20"
       }
     },
+    "node_modules/marked-highlight": {
+      "version": "2.2.4",
+      "resolved": "https://registry.npmjs.org/marked-highlight/-/marked-highlight-2.2.4.tgz",
+      "integrity": "sha512-PZxisNMJDduSjc0q6uvjsnqqHCXc9s0eyzxDO9sB1eNGJnd/H1/Fu+z6g/liC1dfJdFW4SftMwMlLvsBhUPrqQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "marked": ">=4 <19"
+      }
+    },
     "node_modules/math-intrinsics": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",