Bump bootstrap from 3.3.4 to 5.0.0 in /nbgrader/server_extensions/formgrader/static#1974

brichet merged 1 commit intomainjupyter/nbgrader:mainfrom

dependabot/npm_and_yarn/nbgrader/server_extensions/formgrader/static/bootstrap-5.0.0jupyter/nbgrader:dependabot/npm_and_yarn/nbgrader/server_extensions/formgrader/static/bootstrap-5.0.0Copy head branch name to clipboard