add theme saving and indexing

package.json

@@ -45,6 +45,7 @@
     "@types/react": "^18.2.55",
     "@types/react-dom": "^18.2.19",
     "@types/sortablejs": "^1.15.7",
+    "@types/uuid": "^9.0.8",
     "@types/webextension-polyfill": "^0.10.7",
     "@uiw/codemirror-extensions-color": "^4.21.25",
     "@uiw/codemirror-theme-github": "^4.21.25",
@@ -72,6 +73,7 @@
     "tailwindcss": "^3.4.1",
     "ts-loader": "^9.5.1",
     "typescript": "^5.3.3",
+    "uuid": "^9.0.1",
     "vite": "^5.2.2",
     "webextension-polyfill": "^0.10.0"
   }