🚧 Refactor markdown preview extension

frontend/package-lock.json

@@ -46,17 +46,14 @@
         "@replit/codemirror-lang-svelte": "^6.0.0",
         "@toml-tools/lexer": "^1.0.0",
         "@toml-tools/parser": "^1.0.0",
-        "@types/markdown-it": "^14.1.2",
         "codemirror": "^6.0.2",
         "codemirror-lang-elixir": "^4.0.0",
         "colors-named": "^1.0.2",
         "colors-named-hex": "^1.0.2",
         "groovy-beautify": "^0.0.17",
-        "highlight.js": "^11.11.1",
         "hsl-matcher": "^1.2.4",
         "java-parser": "^3.0.1",
         "linguist-languages": "^9.1.0",
-        "markdown-it": "^14.1.0",
         "mermaid": "^11.12.1",
         "npm": "^11.6.3",
         "php-parser": "^3.2.5",
@@ -2920,6 +2917,18 @@
         "@types/d3-selection": "*"
       }
     },
+    "node_modules/@types/debug": {
+      "version": "4.1.12",
+      "resolved": "https://registry.npmmirror.com/@types/debug/-/debug-4.1.12.tgz",
+      "integrity": "sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "@types/ms": "*"
+      }
+    },
     "node_modules/@types/deep-eql": {
       "version": "4.0.2",
       "resolved": "https://registry.npmmirror.com/@types/deep-eql/-/deep-eql-4.0.2.tgz",
@@ -2989,6 +2998,15 @@
       "integrity": "sha512-RGdgjQUZba5p6QEFAVx2OGb8rQDL/cPRG7GiedRzMcJ1tYnUANBncjbSB1NRGwbvjcPeikRABz2nshyPk1bhWg==",
       "license": "MIT"
     },
+    "node_modules/@types/ms": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmmirror.com/@types/ms/-/ms-2.1.0.tgz",
+      "integrity": "sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "peer": true
+    },
     "node_modules/@types/node": {
       "version": "24.10.1",
       "resolved": "https://registry.npmmirror.com/@types/node/-/node-24.10.1.tgz",
@@ -3828,6 +3846,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmmirror.com/argparse/-/argparse-2.0.1.tgz",
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
+      "devOptional": true,
       "license": "Python-2.0"
     },
     "node_modules/asn1.js": {
@@ -6198,15 +6217,6 @@
         "url": "https://opencollective.com/unified"
       }
     },
-    "node_modules/highlight.js": {
-      "version": "11.11.1",
-      "resolved": "https://registry.npmmirror.com/highlight.js/-/highlight.js-11.11.1.tgz",
-      "integrity": "sha512-Xwwo44whKBVCYoliBQwaPvtd/2tYFkRQtXDWj1nackaV2JPXx3L0+Jvd8/qCJ2p+ML0/XVkJ2q+Mr+UVdpJK5w==",
-      "license": "BSD-3-Clause",
-      "engines": {
-        "node": ">=12.0.0"
-      }
-    },
     "node_modules/hmac-drbg": {
       "version": "1.0.1",
       "resolved": "https://registry.npmmirror.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
@@ -6715,6 +6725,8 @@
       "resolved": "https://registry.npmmirror.com/linkify-it/-/linkify-it-5.0.0.tgz",
       "integrity": "sha512-5aHCbzQRADcdP+ATqnDuhhJ/MRIqDkZX5pyjFHRRysS8vZ5AbqGEoFIb6pYHPZ+L/OC2Lc+xT8uHVVR5CAK/wQ==",
       "license": "MIT",
+      "optional": true,
+      "peer": true,
       "dependencies": {
         "uc.micro": "^2.0.0"
       }
@@ -6792,6 +6804,8 @@
       "resolved": "https://registry.npmmirror.com/markdown-it/-/markdown-it-14.1.0.tgz",
       "integrity": "sha512-a54IwgWPaeBCAAsv13YgmALOF1elABB08FxO9i+r4VFk5Vl4pKokRPeX8u5TCgSsPi6ec1otfLjdOpVcgbpshg==",
       "license": "MIT",
+      "optional": true,
+      "peer": true,
       "dependencies": {
         "argparse": "^2.0.1",
         "entities": "^4.4.0",
@@ -6864,7 +6878,9 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmmirror.com/mdurl/-/mdurl-2.0.0.tgz",
       "integrity": "sha512-Lf+9+2r+Tdp5wXDXC4PcIBjTDtq4UKjCPMQhKIuzpJNW0b96kVqSwW0bT7FhRSfmAiFYgP+SCRvdrDozfh0U5w==",
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true,
+      "peer": true
     },
     "node_modules/merge2": {
       "version": "1.4.1",
@@ -10065,6 +10081,8 @@
       "resolved": "https://registry.npmmirror.com/punycode.js/-/punycode.js-2.3.1.tgz",
       "integrity": "sha512-uxFIHU0YlHYhDQtV4R9J6a52SLx28BCjT+4ieh7IGbgwVJWO+km431c4yRlREUAsAmt/uMjQUyQHNEPf0M39CA==",
       "license": "MIT",
+      "optional": true,
+      "peer": true,
       "engines": {
         "node": ">=6"
       }
@@ -11050,7 +11068,9 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmmirror.com/uc.micro/-/uc.micro-2.1.0.tgz",
       "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true,
+      "peer": true
     },
     "node_modules/ufo": {
       "version": "1.6.1",