Preparation for theming

package-lock.json

@@ -27,6 +27,7 @@
         "@polymer/polymer": "3.5.1",
         "@radix-ui/react-avatar": "^1.0.4",
         "@radix-ui/react-dropdown-menu": "^2.0.6",
+        "@radix-ui/react-icons": "^1.3.0",
         "@radix-ui/react-label": "^2.0.2",
         "@radix-ui/react-slot": "^1.0.2",
         "@radix-ui/react-tooltip": "^1.0.7",
@@ -53,6 +54,7 @@
         "@lit-labs/react": "^1.1.0",
         "@rollup/plugin-replace": "5.0.4",
         "@rollup/pluginutils": "5.0.5",
+        "@types/node": "^20.12.2",
         "@types/react": "18.2.42",
         "@types/react-dom": "^18.0.8",
         "@vitejs/plugin-react": "4.2.0",
@@ -3086,6 +3088,14 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-icons": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-icons/-/react-icons-1.3.0.tgz",
+      "integrity": "sha512-jQxj/0LKgp+j9BiTXz3O3sgs26RNet2iLWmsPyRz2SIcR4q/4SbazXfnYwbAr+vLYKSfc7qxzyGQA1HLlYiuNw==",
+      "peerDependencies": {
+        "react": "^16.x || ^17.x || ^18.x"
+      }
+    },
     "node_modules/@radix-ui/react-id": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-id/-/react-id-1.0.1.tgz",
@@ -4008,9 +4018,9 @@
       "peer": true
     },
     "node_modules/@types/node": {
-      "version": "20.11.30",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.11.30.tgz",
-      "integrity": "sha512-dHM6ZxwlmuZaRmUPfv1p+KrdD1Dci04FbdEm/9wEMouFqxYoFl5aMkt0VMAUtYRQDyYvD41WJLukhq/ha3YuTw==",
+      "version": "20.12.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.2.tgz",
+      "integrity": "sha512-zQ0NYO87hyN6Xrclcqp7f8ZbXNbRfoGWNcMvHTPQp9UUrwI0mI7XBz+cu7/W6/VClYo2g63B0cjull/srU7LgQ==",
       "dev": true,
       "dependencies": {
         "undici-types": "~5.26.4"