fix(core): Filter internal API frames for synthetic frames

[kamilogorek]

As well as fixes the ordering of operations and removes some redundant code.
The stack should be trimmed after filtering.

Fixes #8396

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	75.11 KB (+0.02% 🔺)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	31.42 KB (+0.04% 🔺)
@sentry/browser - Webpack (gzipped)	21.96 KB (+0.06% 🔺)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	69.85 KB (+0.03% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	28.31 KB (+0.07% 🔺)
@sentry/browser - ES6 CDN Bundle (gzipped)	20.35 KB (+0.1% 🔺)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	221.1 KB (+0.03% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	86.06 KB (+0.08% 🔺)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	60.54 KB (+0.1% 🔺)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	30.43 KB (+0.06% 🔺)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	65.17 KB (+0.03% 🔺)
@sentry/react - Webpack (gzipped)	21.98 KB (+0.07% 🔺)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	92.93 KB (+0.01% 🔺)
@sentry/nextjs Client - Webpack (gzipped)	50.89 KB (-0.01% 🔽)

[mydea]

super nice! 🚀

[kamilogorek]

Got used to linters being auto-fixed in CI :(