Dashboards: ID collisions causes undefined behavior when rendering about highcharts

[TorsteinHonsi]

Internal note

We have fixed similar isssues in Highcharts previously by prefixing id's with a unique key for each chart instance. Search for uniqueKey throughout the source code for inspiration.

[stitot]

Another approach to accomplish the same is by having multiple layouts in the same Dashboards instance, and toggle display by targeting layout id:

gui: {
    layouts: [{
        id: 'layout-1',
        rows: [{
            cells: [{
                id: 'dashboard-col-0'
            }, {
                id: 'dashboard-col-1'
            }]
        }]
    },
    {
        id: 'layout-2',
        rows: [{
            cells: [{
                id: 'dashboard-col-0'
            }, {
                id: 'dashboard-col-1'
            }]
        }]
    }]
}

I guess the danger of repetition is the same here, and prefixing with unique key for each dashboards instance won't do the trick in this use case.