fixes #18796 - do not flot charts by default

flot initalization relay on css class, if the css class conflict,
legacy flot to try and initalize on the same div as c3.

this removes charts.js to load by default, and only load it in pages
which requires it.

Fixes #14492 - Unify delete and minimize for dashboard widgets

Originally the idea was for the buttons to have a different effect on
the widgets, however with changes introduced later on these differences
have been reduced to being insignificant.

Fixes #18740 - remove erb extension from host_checkbox.js

Fixes #18364 - disable hide of dropdown + tooltip

fixes #18248 - dashboard auto refresh mounts duplicate components

fixes #18250 - show compute resource xhr errors

fixes #18010 - UI Notifications front-end implementation

Fixes #17844 - unify test mail js code

Fixes #18099 - Update the close button style

Change the close button style in the modal window, keep consistent
with PatternFly close button.

Fixes #14714 - Make inherited Puppet Classes more apparent

To better recognize which Puppet Classes are inherited for Host
or Hostgroup they are under a sub-heading as a seperated list.