feat(sveltekit): Add server-side handleError wrapper

[AbhiPrasad]

ref #7403

Adds a wrapper for the server-side handleError hook.

Usage is like the following:

src/hooks.server.js

import { handleErrorWithSentry } from '@sentry/sveltekit';

/** @type {import('@sveltejs/kit').HandleServerError} */
function myCustomHandleError() {
 ...
}

// myCustomHandleError is optional
export const handleError = handleErrorWithSentry(myCustomHandleError);

In #7406 I introduced this functionality on the client side.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.24 KB (+0.11% 🔺)
@sentry/browser - ES5 CDN Bundle (minified)	62.95 KB (+0.11% 🔺)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.87 KB (+0.1% 🔺)
@sentry/browser - ES6 CDN Bundle (minified)	55.87 KB (+0.12% 🔺)
@sentry/browser - Webpack (gzipped + minified)	20.62 KB (+0.12% 🔺)
@sentry/browser - Webpack (minified)	67.39 KB (+0.1% 🔺)
@sentry/react - Webpack (gzipped + minified)	20.65 KB (+0.12% 🔺)
@sentry/nextjs Client - Webpack (gzipped + minified)	48.54 KB (+0.18% 🔺)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	27.51 KB (+0.23% 🔺)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	25.76 KB (+0.21% 🔺)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	43.17 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	37.19 KB (0%)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	61.18 KB (+0.09% 🔺)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	54.35 KB (+0.04% 🔺)

[AbhiPrasad]

In e9d8904 I added two additional changes

1. Renamed wrapHandleErrorWithSentry to handleErrorWithSentry
2. Made the passing of a custom handleError implementation optional

[Lms24]

Great work! 🔥

[Lms24]

l: this needs to be updated I guess 😅

[AbhiPrasad]

yes! good catch.