Bump webpack-dev-server from 2.9.7 to 3.1.11 in /visualizations#1

dependabot[bot] wants to merge 1 commit intomasternoahamac/test_precompiled_vis:masterfrom

dependabot/npm_and_yarn/visualizations/webpack-dev-server-3.1.11noahamac/test_precompiled_vis:dependabot/npm_and_yarn/visualizations/webpack-dev-server-3.1.11Copy head branch name to clipboard