- wrapped every beginTransaction in a try so frontend and backend get more details if an error occurs
- removed transaction from creating exercise copy because it was not working (unknown reason, only in production environment)
- added self healing when saving an exercise that has no main file (first tempalte file will be used)

- fixed some issues where IsContentVisibleForUser was not applied correctly when reset code, saving files, saving after solution files...

- started new migration history (which removed some wrong shadow props)

- removed asset connected props

- create custom project no longer uses assets when frontend sends some

- fixed issue where some custom asset files are returned multiple times (in the same list) by the api

- moved some permission checks closer to method entry point

- forgot to add file worker
- renamed syndrom context (old) to yapex context
- renamed column CanReleaseExercises to CanManageExerciseReleases in GroupRolePermissions

- renamed schedulers to workers

- formatting

- changed get all asset in exercise editor to take the exerciseId because we want the files from all exercises (where the user has access to)

- removed file asset references file path

- fixes issue where everyone can see the members of a group
- changed check group permission to be a task (async)

- some cleanup

- fixed that managing custom test files was still possible even if the release was finished (or time was up)

- added x-frame option deny (in case static files are served) to deny embedding in iframes
- added app configuration to enable secure flagged cookies

  - TODO check assessment schedulers
- fixed issue where just run program always used the old editor content and not the subsequent editor (after a release was finished)

  - normal test assets
  - submit test assets
- do exercise submit test assets working

  - do exercise site
  - exercise editor
  - tutor view
- added app setting to enable/disable init controller