Origam HTML5 client production build is very big

The production build has 3.5 MB. We should try to make it smaller.

dist/index.html                                                          1.04 kB
dist/assets/spritesheet-7077bae9.svg                                     5.55 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-regular-8eacb1ee.woff2     26.36 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-700-215c2c16.woff2         26.87 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-500-66663c16.woff2         27.57 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-regular-bbe62b2c.eot       31.73 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-700-d30315d5.eot           32.22 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-500-1d4d808f.eot           33.37 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-regular-a5f08e14.woff      34.18 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-700-8b9a5be7.woff          34.60 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-500-6ca5f519.woff          35.61 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-700-1751fc56.svg           57.67 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-500-cda13613.svg           57.91 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-regular-6e496076.svg       58.13 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-500-d7cd020e.ttf           76.85 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-700-8dadf1d3.ttf           77.10 kB
dist/assets/ibm-plex-sans-v8-latin-ext_latin-regular-9883af42.ttf       77.18 kB
dist/assets/index-ba671a6a.css                                         142.25 kB │ gzip:  31.09 kB
dist/assets/index-537c87e0.js                                        3,525.66 kB │ gzip: 988.07 kB

(!) Some chunks are larger than 500 kBs after minification. Consider:
- Using dynamic import() to code-split the application
- Use build.rollupOptions.output.manualChunks to improve chunking: https://rollupjs.org/configuration-options/#output-manualchunks
- Adjust chunk size limit for this warning via build.chunkSizeWarningLimit.