chore: consolidate build process

[SgtPooki]

instead of having npm run build do tsc and node build.js we should consolidate them.

• we need to ensure we have a single folder that folks can deploy (that we add to cloudflare pages for inbrowser.tld) that only have the assets we want for the published app
• we should build final TS from test/test-e2e/src into JS into dist
• we should look into consolidating playwright tests and unit tests into test/ folder (unit tests are *.spec.* and e2e tests are *.test.*

[MrRob0t404]

May I get assigned to this issue?

[SgtPooki]

@MrRob0t404 If you want to put out a draft PR.. feel free, but I am hesitant to have non-maintainers work on this one.