[Rush] Add rush-serve plugin dashboard UI and config updates - #5893

[Rush] Add rush-serve plugin dashboard UI and config updates#5893

Bharat Middha (bmiddha) merged 13 commits into

microsoft:mainmicrosoft/rushstack:mainfrom

mojaza:rush-server-plugin-dashboardmojaza/rushstack:rush-server-plugin-dashboardCopy head branch name to clipboard