Option to disable download SQLite database and logs download from admin panel

[StatisMike]

The option to download logs and SQLite database from within the admin mode might be handy in some situations, though it may create a vulnerability for exploits, especially administrator with authorization for all apps have direct access to Shiny-Server (so it isn't actually needed) and there are also administrators with authorization limited to only some apps.

[bthieurmel]

Hi @StatisMike : can you confirm that we can wait for your PR on this new feature ?

[StatisMike]

Yes, It will be done in a few days.