Bump flat and mocha in /apps/user#11

dependabot[bot] wants to merge 1 commit intomainflashflashrevolution/website:mainfrom

dependabot/npm_and_yarn/apps/user/flat-and-mocha-5.0.2flashflashrevolution/website:dependabot/npm_and_yarn/apps/user/flat-and-mocha-5.0.2Copy head branch name to clipboard