Move Information about Nanocloud version to main page

[marc-cabocel]

=== Version ===

• v2.1.1

=== New Enhancement ===

• If a user wants to know which Nanocloud version he is using, he has to log out to check this info. It is a bit annoying for people running the platform. Would it be possible to access this information in the main page, like it used to be.

Thanks