No access screen instead of default values of a study when researcher has no permissions for study #616
Description
Currently, if a researcher shares a link to another researcher with no access to a study, a study with default values is shown. Instead of this behaviour, the user should get an information text, that he/she has no access to this specific study and a link to the main page.
Current:
Todo:
- Show a no-access site, when a researcher does not have access to a specific study.
- It should show a text like "Unfortunately, you have no access to this study. Please contact the study administrator, if you need access to it."
- It should give the possibility to route back to the index page via button "Back to all studies".