Add Serial/USB foot-gun warnings for AVR (ATmega32U4), RP2040, and Teensy - #6

Add Serial/USB foot-gun warnings for AVR (ATmega32U4), RP2040, and Teensy#6

zackees merged 2 commits into

copilot/add-unit-test-cdc-boot-warningFastLED/fbuild:copilot/add-unit-test-cdc-boot-warningfrom

copilot/list-similar-print-boot-issuesFastLED/fbuild:copilot/list-similar-print-boot-issuesCopy head branch name to clipboard