chore: Bump @nextcloud/vue to v8 beta 6

[Pytal]

Summary

Release notes https://github.com/nextcloud-libraries/nextcloud-vue/releases/tag/v8.0.0-beta.6

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[Pytal]

All component styling is broken

This is because styles are no longer embedded in the js dist since nextcloud-libraries/nextcloud-vue#4386, with the css being separated into the assets folder https://unpkg.com/browse/@nextcloud/vue@8.0.0-beta.6/dist/assets/

Webpack should handle these css imports, i.e. https://unpkg.com/browse/@nextcloud/vue@8.0.0-beta.6/dist/Components/NcButton.mjs, with css-loader but is not working here and I'm not sure why 🤔

Any ideas @ShGKme @susnux ?

[susnux]

Any ideas @ShGKme @susnux ?

Webpack is working fine, the styles are included... But there is a bug:
When running development build for the vue library the assets are named correctly, but when running production build the CJS and MJS build will emit two sets of assets with different naming.
Meaning CJS overrides MJS assets (the css files), so that the wrong styles are loaded when using mjs.

I will work on a fix.

[susnux]

@Pytal resolved the issue, see nextcloud-libraries/nextcloud-vue#4531

(Tested on current server master and works :) )

[ShGKme]

@susnux Is the server compatible now with @nextcloud/vue@8.0.0-beta.6?

[susnux]

@susnux Is the server compatible now with @nextcloud/vue@8.0.0-beta.6?

No but we @nextcloud/vue master -> we need to release a beta.7 and then update server

[susnux]

(but I would really like to have NcDialog and the button content handling available in the next release 😓 )