Bump webpack-dev-server from 2.9.4 to 3.1.11 in /client#3

dependabot[bot] wants to merge 1 commit intostandalonezweicoder/songbird:standalonefrom

dependabot/npm_and_yarn/client/webpack-dev-server-3.1.11zweicoder/songbird:dependabot/npm_and_yarn/client/webpack-dev-server-3.1.11Copy head branch name to clipboard