Description

ZObjects are stored in vuex in the shape of tables, where each row has the following properties:

{
  id: 11
  key: "Z40K1"
  parent: 7
  value: "object"
}

Create a JS class for Row handles all the common behavior (getters, isObject, isArray, isTerminal, etc...)

Desired behavior/Acceptance criteria

• Add Row class
• Change Vuex store methods (getRowBy...) so that they return Row instead of Object
• Move all common methods to this class (getters, isObject, isArray, isTerminal, etc...)
• Replace the usage of row object with the new Row in the default components
• Add tests!

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist