Write documentation to the official Camunda 8 docs repository for the following aspects:

• general high-level concept of the new batch operations
  • how the components work together
  • happy path
  • error cases and what to do
  • possible negative impacts on general processing
• new configuration options for the Zeebe engine
• new configuration options for the CamundaExporter

Note: The rdbms exporter is not part of this ticket, as no official docs exist for that one so far