Platform Health - Baseline performance metrics (FE)

[emilyjablonski]

As an outcome of our platform health workshop, we want to establish baseline performance metrics, so that we can then make a plan to resolve the biggest issues. This includes general performance but should also focus on the experience of using a throttled connection and/or an older device.

Thoughts from the workshop:

• Can we measure / identify issues with the bundle size using the bundle analyzer
• Can we find places we're not taking advantage of Next's performance perks like SSR (would it require a Next upgrade?)
• Can we measure in the dev tools network tab the time to page load per page, and troubleshoot red flags from there?

Related, but more backendy:

• Investigate useSWR
• Look at response times of API calls in Heroku

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