Automatic merge of T1.4-rc6-12-gfab59f576 and 9 pull requests

- Pull request #480 at 6bc94a9: Blueprint https://blueprints.launchpad.net/or/+spec/digital-alignment-in-3dcabs
- Pull request #503 at a2845f8: Update derailment functionality
- Pull request #508 at 21fb5e9: Blueprint https://blueprints.launchpad.net/or/+spec/odometer-cabview-controls
- Pull request #510 at d4d3256: Add performance monitoring for diesel mechanic locomotives and new parameters
- Pull request #512 at b76931f: Fixed dynamic brake being applied during standstill when dynamic brake blending is enabled
- Pull request #514 at 383d2a0: Bug fix for https://bugs.launchpad.net/or/+bug/1946373. The keywords should not be translated.
- Pull request #516 at 1498583: feat: Build Unstable Version as debug
- Pull request #517 at dc566d5: Strengthen Contributing guidance
- Pull request #518 at 59424c1: Added rules to policy page on website