* Fix broken STEPTEST (already included)
* Update SAMD51 build deps
* Remove dead video links
* Fix comma typo
* Optimize LPC176x pin toggle
* Misc. SPI cleanup
* Overridable SUICIDE_PIN for RAMPS_CREALITY
* Assume RAMPS_CREALITY is not CR2020
* "Boards Manager"
* Prefer friendly Power Off over Auto-unalive
* Adjust pulse_phase_isr code guards
* Mount media early for POWER_LOSS_RECOVERY
* Version 2.1.2.4
