Improving general performance

This has become a lot more important to me as of starting building the Android app.

I'm going to be running Lighthouse (the "Audit" tab in Chrome to evaluate performance, specifically on the Home view and the Activity view).

This was enlightening: https://checklyhq.com/blog/2018/08/how-we-got-a-100-lighthouse-performance-score-for-our-vue.js-app/