Remove extension list from integration save page, if none is present

[squakez]

This is a...

[x] Feature request
[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Documentation issue or request

Description

When there is no extension available I suggest to have an alternative text saying that no library is available instead of an empty list:

[MelissaFlinn]

Yes - I agree. This is a good idea. Thank you.

[stale]

This issue has been automatically marked as stale because it has not had any activity since 90 days. It will be closed if no further activity occurs within 7 days. Thank you for your contributions!