Bump version to 3.0.3 in package.json (#48)

update packages

update packages at demo

update minor tag

move react, react-dom to peerDependencies

version up from 2.3.15 to 2.3.16

update deps

Merge remote-tracking branches 'origin/dependabot/npm_and_yarn/packag…

…e/express-4.19.2', 'origin/dependabot/npm_and_yarn/package/follow-redirects-1.15.6' and 'origin/dependabot/npm_and_yarn/package/webpack-dev-middleware-5.3.4'

update packages

update dependencies