Implement updated design for term management in license settings

Purpose:
As part of ERM-1978 a new interface is being implemented in agreements for managing custom properties. This story is to implement the same approach for license terms

*User story statement(s):

As a ERM administrator
I want to be able to search through license terms in settings
so that I can more easily manage the list of license terms

Scenarios:

1. Scenario:
   • Given Settings -> Licenses
   • When I select Terms
   • Then I see a list of terms in an MCL style display
   • AND I see the option to filter the terms by typing into a search box
2. Scenario:
   • Given the Terms management UI
   • When I type in the search box
   • Then the list of terms updates to only show terms that contain those words in label, name or description
3. Scenario:
   • Given the Terms management UI
   • When I select a Term in the list of terms
   • Then the term is displayed in a fourth pane
4. Scenario:
   • Given I have selected a term to be displayed in the fourth pane
   • When view the pane
   • Then I see the details of the term in the same layout as is currently used for term definitions in settings
   • 
5. Scenario:
   • Given I have selected a term to be displayed in the fourth pane
   • When view the pane
   • Then I see an action menu dropdown from which I can select to either Edit or Delete the term
6. Scenario:
   • Given a term in the fourth pane
   • When I select Action -> Edit option
   • Then the term details are show in an edit modal, following the pattern of the current Edit mode for a term definition
   • 
7. Scenario:
   • Given I am editing a Term definition
   • When I select Save and Close
   • Then the same validation behaviour as currently will be applied and I will not be able to save the term definition until it passes validation
8. Scenario:
   • Given a term in the fourth pane
   • When I select Action -> Delete option
   • Then the term will only delete if it has not been used to add a term value on any license. If the term cannot be deleted then a warning message will be shown to the user (this is the same as the current Delete behaviour)