Bump json5, source-map-loader, ts-loader and webpack#19

dependabot[bot] wants to merge 1 commit into

master1e14/ninety:masterfrom

dependabot/npm_and_yarn/json5-and-source-map-loader-and-ts-loader-and-webpack--removed1e14/ninety:dependabot/npm_and_yarn/json5-and-source-map-loader-and-ts-loader-and-webpack--removedCopy head branch name to clipboard