bump @nextcloud/vue from 7.5.0 to 7.7.1

---
updated-dependencies:
- dependency-name: "@nextcloud/vue"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -41,7 +41,7 @@
     "@nextcloud/moment": "^1.2.1",
     "@nextcloud/notify_push": "^1.1.3",
     "@nextcloud/router": "^2.0.1",
-    "@nextcloud/vue": "^7.5.0",
+    "@nextcloud/vue": "^7.7.1",
     "@nextcloud/vue-dashboard": "^2.0.1",
     "@nextcloud/vue-richtext": "^2.0.4",
     "blueimp-md5": "^2.19.0",