build(replay): Improve replay-worker build

[mydea]

This changes the build for the replay worker:

• Ensure that build:transpile and build:types are actually separate things, to avoid conflicts
• Ensure we do not rely on copying vendor stuff as-is, but relying on rollup

Basically, we now keep the worker in _worker.ts, while worker.ts is just a placeholder that is replaced at built time with the string-wrapped & resolved version of _worker.ts. This way, the imports etc. work as expected, and we can actually generate the types normally.

I also aligned the build structure with other packages, the output is now:

While index.js is:

import r from"./worker";function e(){const e=new Blob([r]);return URL.createObjectURL(e)}export{e as getWorkerURL};

and worker.js is:

export default `/*! pako 2.1.0 https://github.com/nodeca/pako @license (MIT AND Zlib) */
function t(t){let e=t.length;......

[AbhiPrasad]

Nice, I like this approach!

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.09 KB (+0.06% 🔺)
@sentry/browser - ES5 CDN Bundle (minified)	62.23 KB (+0.03% 🔺)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.71 KB (+0.06% 🔺)
@sentry/browser - ES6 CDN Bundle (minified)	55.37 KB (+0.04% 🔺)
@sentry/browser - Webpack (gzipped + minified)	20.44 KB (+0.03% 🔺)
@sentry/browser - Webpack (minified)	66.81 KB (+0.03% 🔺)
@sentry/react - Webpack (gzipped + minified)	20.47 KB (+0.03% 🔺)
@sentry/nextjs Client - Webpack (gzipped + minified)	47.9 KB (+0.02% 🔺)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	27.03 KB (+0.04% 🔺)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	25.29 KB (+0.05% 🔺)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	42.51 KB (+0.06% 🔺)
@sentry/replay - Webpack (gzipped + minified)	36.67 KB (-0.6% 🔽)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	60.23 KB (+0.04% 🔺)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	53.77 KB (+0.05% 🔺)