Overview

This PR aims to add an implementation of UI store migration base.
Since we persist two different stores (pair-status and root) we need individual migration functions for each.
All persisted store versions will start from 0 and it will increment once migration happens.

Example migration implementation

• Increment migration version (For example, make rootPersistedConfig version 0 to 1)
• Add a migration file under packages/app/ui/migrations/root/m1.js
• Add file reference to index.js with version and migration function

const migrations = {
  // version: migration function
  1: m1,
  2: m2,
  3: m3,
  //...
};

• Fill migration function

How to reproduce migration in local

• Start app with migration version 0 for the store you want to migrate
• Kill app
• Increment version number by 1
• Set createMigrate function option debug to true (packages/app/ui/ducks/index.js)
• Start app (it will also run migrations)
• You can use UI developer tools to debug since that migration happens on UI