Is your feature request related to a problem? Please describe.
The buttons will be provided by the application that will embed the library. The library should provide functions/commands to allow to move to any direction.
As a first implementation, the lib will use fixed step value for the translation. If needed, this will be configurable in the future.

Describe the solution you'd like
Something similar to the POC demonstrated in process-analytics/bpmn-visualization-js#555.
This

• should work when the container has scrollbars.
• should be provided as a plugin and should only provide an API: ScrollApiPlugin

The usage of buttons to scroll should be done in the application integrating the library, by using the provided API

Additional context
We will probably need to measure rendering performance of this feature as for #168.

[UPDATE 2023-11-12] Originally named https://github.com/process-analytics/bpmn-visualization-js/issues/846