Add configuration to event filtering

[elmattic]

Summary of changes

Changes introduced in this pull request:

• Add support for FOREST_MAX_FILTER_RESULTS
• Add to configuration an EventsConfig section

Reference issue to close (if applicable)

Closes #4851

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.