Fixed styling for the dynatree nodes in the Entry point popups Also added a logic to set highlight only on valid nodes
Fixed styling for the dynatree nodes in the Entry point popups
Also added a logic to set highlight only on valid nodes

<fieldset> was removed when we added the Patternfly buttons to the form,
therefore the dynatree CSS that was using fieldset had to be fixed.

#1292
(transferred from ManageIQ/manageiq@5277572a2c23abd8db7ac44bb88c3d619b06e062)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic