Create a tool for migrating the progress and quiz data to the new tables

[m1r0]

Goal

We need a tool (Sensei LMS -> Tools) that starts the progress and quiz data migration.

Scope

• Create a new tool in Sensei LMS -> Tools.
• The tool should have its own screen.
• The tool should only be visible if the progress tables experimental feature is enabled.
• There should be an action button that runs the migration process.
• The data sync between comments and tables should be enabled once the migration process is complete.
• Once the migration is done, there should be a notification in the admin panel.
• If there is an error with the migration process, there should be a notification in the admin panel.
• It would be useful to show the total vs pending rows count.