Description and Motivation

Added a Analytics tab in header navigation linking to https://info.whitewhale.money/pools

Related Issues

#292

Checklist:

• I have read Migaloo's contribution guidelines.
• My pull request has a sound title and description (not something vague like Update index.md)
• All existing and new tests are passing.
• I updated/added relevant documentation.
• The code is formatted properly yarn lint.
• The project builds and is able to deploy on Netlify yarn build.