Bump node-fetch, @reach/router, firebase, react and react-dom#51

dependabot[bot] wants to merge 1 commit intomasterLinkedInLearning/react-spas-774920:masterfrom

dependabot/npm_and_yarn/node-fetch-and-reach/router-and-firebase-and-react-and-react-dom-2.6.7LinkedInLearning/react-spas-774920:dependabot/npm_and_yarn/node-fetch-and-reach/router-and-firebase-and-react-and-react-dom-2.6.7Copy head branch name to clipboard