Issue #2350939 by dpi, jibran, acbramley, Manuel Garcia, chr.fritsch, AaronMcHale, Nono95230, capysara, darvanen, enyug, ravi.shankar, Spokje, thhafner, larowlan, smustgrave, mstrelan, mikestar5, andregp, joachim, shubhangi1995, nterbogt, mkalkbrenner, Berdir, Sam152, Xano: Implement a generic revision UI

Issue #2425101 by Wim Leers, mgifford: system.performance_settings should be declared in system.links.task.yml

Issue #1875996 by Xano, tim.plunkett, neclimdul, Rajendar Reddy, Jalandhar: Reconsider naming conventions for derivative classes.

Issue #2107531 by pwolanin, neclimdul, cilefen, dawehner, YesCT, tim.plunkett: Improve DX of local task YAML definitions.

Issue #2135787 by amateescu, Gábor Hojtsy, YesCT: Move static config entity local tasks to local_tasks().yml.

Issue #2102125 by dawehner, tim.plunkett, neclimdul, pwolanin, YesCT, damiankloip, Tim Bozeman: Big Local Task Conversion.

Issue #2104741 by Gábor Hojtsy: Fixed Quick fix: small tab inconsistencies + lack of tab conversion.

Issue #2095271 by Gábor Hojtsy, tim.plunkett, YesCT: Add default tabs for routes expected by config_translation().