Add GitLab Fonts to Navigation package

Update the font stack to use GitLab Sans, note that we needed to update the review app vite file so that fonts load appropriately.

• updated CI to use yarn and deleted files generated with npm install
• updated node version of CI files. I noticed we bumped the node version, we should match that version in the review app too
• Updated the review app config to work with the embedded font files

Review app and local dev should look identical. Note that these changes are important while maintaining the navigation packages between our repos. Once the migration is complete, we can stop maintaining the package.