Improving UI and sync process

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.8.0",
       "dependencies": {
         "@hpke/core": "^1.9.0",
+        "@zxing/browser": "^0.2.1",
         "dexie": "^4.4.4",
         "qrcode": "^1.5.4"
       },
@@ -3116,6 +3117,41 @@
         "url": "https://opencollective.com/vitest"
       }
     },
+    "node_modules/@zxing/browser": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@zxing/browser/-/browser-0.2.1.tgz",
+      "integrity": "sha512-92pVfVDUXbc15xu9vIEmhNyqIEASMEkDF92CwT6T+7sg2EHXJRktH9CQKoQSXe51UtbNsj+Fm09H/JBWHMs/Sw==",
+      "license": "MIT",
+      "optionalDependencies": {
+        "@zxing/text-encoding": "^0.9.0"
+      },
+      "peerDependencies": {
+        "@zxing/library": "^0.23.0"
+      }
+    },
+    "node_modules/@zxing/library": {
+      "version": "0.23.0",
+      "resolved": "https://registry.npmjs.org/@zxing/library/-/library-0.23.0.tgz",
+      "integrity": "sha512-6fkkoFwP8CHxl6ugnPsj74PLJgX2iRv5zczGAyt5OBzQgxFhuhF0NCEc4t4OvSr8xAv2MRLlI0Iu9ZGDZQ2urA==",
+      "license": "Apache-2.0",
+      "peer": true,
+      "dependencies": {
+        "ts-custom-error": "^3.3.1"
+      },
+      "engines": {
+        "node": ">= 24.0.0"
+      },
+      "optionalDependencies": {
+        "@zxing/text-encoding": "~0.9.0"
+      }
+    },
+    "node_modules/@zxing/text-encoding": {
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/@zxing/text-encoding/-/text-encoding-0.9.0.tgz",
+      "integrity": "sha512-U/4aVJ2mxI0aDNI8Uq0wEhMgY+u4CNtEb0om3+y3+niDAsoTCOB33UF0sxpzqzdqXLqmvc+vZyAt4O8pPdfkwA==",
+      "license": "(Unlicense OR Apache-2.0)",
+      "optional": true
+    },
     "node_modules/acorn": {
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.18.0.tgz",
@@ -6874,6 +6910,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/ts-custom-error": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/ts-custom-error/-/ts-custom-error-3.3.1.tgz",
+      "integrity": "sha512-5OX1tzOjxWEgsr/YEUWSuPrQ00deKLh6D7OTWcvNHm12/7QPyRh8SYpyWvA4IZv8H/+GQWQEh/kwo95Q9OVW1A==",
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",