feat(theme): complete Minecraft overhaul for all pages including admin/utility

frontend/package-lock.json

@@ -11,6 +11,7 @@
         "@monaco-editor/react": "^4.7.0",
         "highlight.js": "^11.11.1",
         "katex": "^0.16.28",
+        "lucide-react": "^0.564.0",
         "next": "16.1.6",
         "react": "19.2.3",
         "react-dom": "19.2.3",
@@ -6321,6 +6322,15 @@
         "yallist": "^3.0.2"
       }
     },
+    "node_modules/lucide-react": {
+      "version": "0.564.0",
+      "resolved": "https://registry.npmjs.org/lucide-react/-/lucide-react-0.564.0.tgz",
+      "integrity": "sha512-JJ8GVTQqFwuliifD48U6+h7DXEHdkhJ/E87kksGByII3qHxtPciVb8T8woQONHBQgHVOl7rSMrrip3SeVNy7Fg==",
+      "license": "ISC",
+      "peerDependencies": {
+        "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/magic-string": {
       "version": "0.30.21",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",