enable saving Criteria for re-use in other lists

[bicarbon8]

Description

the current process of adding criteria to a list involves clicking the Add New Criteria button at the bottom of a list of Criteria when in List Edit Mode. this should be modified as follows:

• update Add New Criteria button to contain a dropdown allowing selection of saved Criteria
  • saved Criteria should be listed by their name
  • saved Criteria cannot have multiple with the same name
• MUST also be able to select an empty criteria to be added so users can still create new Criteria for their lists

How saving Criteria should work

• users should be able to save their criteria as a template to be selected when using the above Add New Criteria button by clicking a save icon on the criteria after they've specified all the values. the icon will be disabled until all fields have values.
• deleting a pre-defined Criteria should be done by clicking a delete icon on a criteria in the dropdown which will present the user with a confirmation modal and then remove the entry from the dropdown
• if a user saves a Criteria and then modifies the type or values, the save toggle will become disabled as this is no longer a match for the saved Criteria type. attempting to re-save without changing the name will result in a validation error being displayed (names must be unique)