Add guide for tree shaking in JavaScript

[lforst]

In getsentry/sentry-javascript#4842 we made the JavaScript SDKs a little bit more tree-shakable.
We now want to explain users how to get rid of debug code if they don't want debug functionality in their code.

PR should not be merged before getsentry/sentry-javascript#4842 is released.

Ref: https://getsentry.atlassian.net/browse/WEB-772

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🔍 Inspect: https://vercel.com/sentry/sentry-docs/8BUibRAVaoWhQo6YLdi2z2Zsbmp5
✅ Preview: https://sentry-docs-git-lforst-js-treeshaking-guide.sentry.dev

[AbhiPrasad]

I think this might be important enough that we elevate to it's own page under https://docs.sentry.io/platforms/javascript/configuration/. What do you think?

[AbhiPrasad]

should we hide these for the nextjs platform?

[lforst]

Yeah you're right. For nextjs, only the nextjs config section makes sense. Updated in: 41391dc

[imatwawana]

The writing here is solid! I've just made a number of edits to follow our style guide. Please ping me for review when you've made updates so I can give it another quick read.

[lforst]

I think this might be important enough that we elevate to it's own page under docs.sentry.io/platforms/javascript/configuration. What do you think?

@AbhiPrasad I would currently let it live under troubleshooting. When we figured out the tree shaking stuff a bit more (ie, shaking the tracing in next.js) it suddenly becomes a lot more important and I would consider moving it to its own page.

[AbhiPrasad]

@AbhiPrasad I would currently let it live under troubleshooting. When we figured out the tree shaking stuff a bit more (ie, shaking the tracing in next.js) it suddenly becomes a lot more important and I would consider moving it to its own page.

The only consequence of this is that we would have to leave a link from the current location to the new one so that users do not get confused - IMO there's not much more to figure out, I'd rather just do it right the first time here.

[lobsterkatie]

Nice. Nothing major on my end - mostly just wordsmithing.