Implement shared sections (verse1,verse2) and overriding information

[mickmister]

When you clone/duplicate a section, they should continue to share all data. Whenever the user makes a change to a section, we should ask them if they want to make this a holistic change for all sections that are cloned, or just this one and create a divergent path for this particular instance of the section

So the data model around this needs to have a sense of "overriden changes". Maybe we have a relationship like "section template" in the data model. When a user clones a section, we end up with 3 section objects. One is a template, and two are instances.

Before user duplicates the first section:

{
    sections: [
        {id: 'aabb', name: 'Verse'}
    ]
}

After user duplicates the section:

{
    sections: [
        {id: 'zzz', is_template: true, name: 'Verse'},
        {id: 'aabb', name: 'Verse 1', template_id: 'zzz'},
        {id: 'ccdd', name: 'Verse 2', template_id: 'zzz'},
    ]
}

This should be the result if the user has confirmed they want to share information between clones of the section I think