Add Custom Babel Transformers to Sentry Metro Plugin page

[krystofwoldrich]

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Adds answer to getsentry/sentry-react-native#4459 directly to the docs.

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LEGAL BOILERPLATE

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

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• Sentry Docs contributor guide

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Name	Status	Preview	Comments	Updated (UTC)
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[coolguyzone]

Thanks for updating!

[codecov]

Bundle Report

Changes will increase total bundle size by 102.58kB (0.51%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-server-cjs	10.73MB	102.58kB (0.97%) ⬆️
sentry-docs-client-array-push	9.31MB	-6 bytes (-0.0%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	33.65kB	1.67MB	2.06%
../instrumentation.js	33.65kB	998.88kB	3.49%
9523.js	33.68kB	975.12kB	3.58%
../app/[[...path]]/page.js.nft.json	538 bytes	374.52kB	0.14%
../app/platform-redirect/page.js.nft.json	538 bytes	374.43kB	0.14%
../app/sitemap.xml/route.js.nft.json	538 bytes	372.4kB	0.14%

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	866.04kB	-0.0%
static/chunks/9557-*.js	-3 bytes	391.11kB	-0.0%
static/0xJJvcDs8goBzVTrQjzpL/_buildManifest.js (New)	578 bytes	578 bytes	100.0% 🚀
static/0xJJvcDs8goBzVTrQjzpL/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/l80_Bm3Ieee2gGuZzW-*.js (Deleted)	-578 bytes	0 bytes	-100.0% 🗑️
static/l80_Bm3Ieee2gGuZzW-*.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️