enable/disable e2e encryption

package.json

@@ -36,9 +36,11 @@
     "daisyui": "^2.51.6",
     "date-fns": "^2.29.3",
     "dompurify": "^3.0.2",
+    "file-saver": "^2.0.5",
     "firebase": "^9.22.0",
     "firebaseui": "^6.0.2",
     "hamburgers": "^1.2.1",
+    "jszip": "^3.10.1",
     "lodash-es": "^4.17.21",
     "marked": "^4.3.0",
     "shortid": "^2.2.16",
@@ -52,6 +54,7 @@
     "@tsconfig/node18": "^2.0.1",
     "@types/crypto-js": "^4.1.1",
     "@types/dompurify": "^3.0.2",
+    "@types/file-saver": "^2.0.5",
     "@types/lodash-es": "^4.17.7",
     "@types/node": "^20.2.1",
     "@types/shortid": "^0.0.29",