Bump nextcloud-vue from 0.12.0 to 0.12.1

Bumps [nextcloud-vue](https://github.com/nextcloud/nextcloud-vue) from 0.12.0 to 0.12.1.
- [Release notes](https://github.com/nextcloud/nextcloud-vue/releases)
- [Commits](https://github.com/nextcloud/nextcloud-vue/compare/v0.12.0...v0.12.1

)

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