Bump sweetalert2 from 8.17.6 to 8.18.0 in /app

Bumps [sweetalert2](https://github.com/sweetalert2/sweetalert2) from 8.17.6 to 8.18.0.
- [Release notes](https://github.com/sweetalert2/sweetalert2/releases)
- [Changelog](https://github.com/sweetalert2/sweetalert2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sweetalert2/sweetalert2/compare/v8.17.6...v8.18.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

app/package.json

@@ -58,7 +58,7 @@
     "materialize-css": "^1.0.0",
     "node-notifier": "^6.0.0",
     "sumchecker": "^3.0.0",
-    "sweetalert2": "^8.17.6",
+    "sweetalert2": "^8.18.0",
     "vue": "^2.6.10"
   },
   "optionalDependencies": {

app/yarn.lock

@@ -2700,10 +2700,10 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-sweetalert2@^8.17.6:
-  version "8.17.6"
-  resolved "https://registry.yarnpkg.com/sweetalert2/-/sweetalert2-8.17.6.tgz#80ae892cced06cfb03e6152bfa78e238c24db9be"
-  integrity sha512-5V/zlNr/WXOW+Hmu2Sn0tCzd2+FvjVZv99i0gNYN7dk31VSPYM9mNuF5QUz5OVq49yYMpOV+F2Qslup8nnm4MQ==
+sweetalert2@^8.18.0:
+  version "8.18.0"
+  resolved "https://registry.yarnpkg.com/sweetalert2/-/sweetalert2-8.18.0.tgz#e8536aa0b1a1474ef36e5350ff4ae0cf473478b3"
+  integrity sha512-t8r4oIisUd/fPsd4/YKuiWTKnrxZsolUVk/w7nGhMu5MKsuGh6J5sQ9Jtio+5xKg/w5QOJpH8TUhb5INuVo/YQ==
 
 tar@^4.4.8:
   version "4.4.11"