Added navbar item for new frontend system

• Updated to Backstage 1.42.0
• Added support for the new frontend system (as alpha export)
• Fixed bug with filesystem file saving causing EXDEV, thanks to @omrd-nngit

New features

• Markdown editor now supports translations using the Backstage translation API
• It's possible to give a reason for deletion of posts, answers, collections, and tags (#312). These reasons will be audit logged, and if the user deleting the entity is a moderator, the original author will get a notification.

Bug fixes

• Notifications are no longer sent for draft posts (#322), thanks to @basmulder03
• Markdown editor now handles mentions better, thanks to @basmulder03 :
  • if qeta.maxTags = 0, it's not possible to use # for tag mentions
  • If qeta.mentions.supportedKinds is an empty array, it's not possible to use @ for user/group mentions

• Filter post count correctly for collections

New features:

• Post edit now sends notifications for new tags, entities, and mentions (#313)
• Post editor now supports mentioning groups as well as users. This can be enabled by adding config:

qeta:
  mentions:
    supportedKinds:
      - User
      - Group

Thanks for contribution @basmulder03

Later on, this will also allow adding other entities via mentions.

Fixes and other

• Updated to Backstage 1.41.1
• Empty collections are back visible in the UI (fixes #317)

Small UI improvement for author boxes

Small UI fixes + improvement for post trend calculation

Minor navigation fixes when deleting posts/answers/comments/collections.

This release makes the image uploading use relative paths for images by default. This means the image URLs uploaded to posts will be in the format /api/qeta/attachments/uuid instead https://my-idp/api/qeta/attachments/uuid. If you are running your backend on a different URL than your frontend, you can disable this by setting the config value qeta.storage.useRelativeUrls to false.

This is to fix bug #310, but it doesn't automatically fix the existing image URLs in post contents.

New features:

• Users can now save posts as drafts (#204)
• Post editor now supports automatic saving functionality (#204)
• Posts, answers, and comments are not deleted from the database but instead marked as deleted. Moderators can see deleted posts from the moderator panel (#87) and either delete them permanently or restore them to an active state