Investigate bundle size

[rparini]

When building the app see:

File sizes after gzip:

  1.45 MB  build/static/js/main.e4cf[8](https://github.com/rparini/cxroots-app/actions/runs/8317250358/job/22757782578#step:7:9)76c.js
  4.51 kB  build/static/css/main.bde4[9](https://github.com/rparini/cxroots-app/actions/runs/8317250358/job/22757782578#step:7:10)277.css

The bundle size is significantly larger than recommended.
Consider reducing it with code splitting: https://goo.gl/9VhYWB
You can also analyze the project dependencies: https://goo.gl/LeUzfb