[Flamechart] Hide the minimap

[cauemarcondes]

Is your feature request related to a problem? Please describe.
Sometimes the minimap that shows your location in the flamechart takes too much space, making it difficult to visualize the nodes.

Describe the solution you'd like
Would it be able to add a button on the top right corner of the minimap to hide it?
Once hidden we can add another button close to the search string field to display it again. This way the user have control over when the minimap is visible or not.
It would be nice to have a new optional property on the flamegraph component so that clients could define the default behavior, for example: displayMinimap: boolean (default to true)

Describe alternatives you've considered
If a button on the top right corner doesn't work, we can add a toggle button close to the search string field: Show minimap | Hide minimap

Additional context
N/A

Kibana Cross Issues
N/A

Checklist

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[markov00]

Totally agree, a button there is pretty quick and easy to implement.

[christos68k]

I would like to see this implemented. Reducing the minimap size should also be considered, I think the current size is excessive and hides a lot of underlying flamegraph information.