feat: add @salesforce/lightning-dev as JIT plugin @W-21188143@#2608

wjhsf wants to merge 3 commits intosalesforcecli:mainsalesforcecli/cli:mainfrom

wjhsf:wjh/jit-lightning-devwjhsf/cli:wjh/jit-lightning-devCopy head branch name to clipboard