Fixes #4419 - rearranging smart class parameters edit form

Fixes #10248 - cloning volume information for virtual machines

fixes #11172 - disable select2 with css class (and enable elsewhere)

fixes #11171 - compute profiles nics & volumes select2 are initiated separately

Fixes #9591 - Added support for "inherit" state.

Fixes #11062 - do not process data when FormData is used

Fixes #10929 - Add removed widgets to dashboard

This commit allows users to re-add widgets. At this point it's only
possible to recover removed widgets by clicking on "Reset to default".

To do this I populate the 'Add widgets' list by getting a diff
between the current widgets and the available ones. The code calls any...

Fixes #11011 - notifications are removed when window is changed

Fixes #11035 - template preview feature

fixes #10985 - Set css class for width of filter select on Puppet CA index