feat(browser): Add `graphqlClientIntegration`

[Zen-cronic]

Resolves #13399

Todo:

• [x] ~~Support fetch spans and tests~~
• [x] ~~Support shorthand graphql queries (i.e., without a name)~~ Moved to later
• [x] ~~Enhance breadcrumb data~~

---

• [x] If you've added code that should be tested, please add tests.
• [x] Ensure your code lints and the test suite passes (yarn lint) & (yarn test).

[Zen-cronic]

• [x] ~~Todo: fix failing fetch tests by removing body from non-graphql requests~~

[Zen-cronic]

Just wanted to inform about the failing tests:

• size limit exceeded by 3 bytes! (CDN Bundle (incl. Tracing, Replay))
• all the playwright tests related to bundle (e.g., bundle_min, bundle_replay) have been failing with a timeout

[Zen-cronic]

noted, i'll implement the feedback. thanks for the comprehensive review!

• [x] update span hook
• [x] update breadcrumb hook
• [x] resolve rebase conflicts

will move on with the conflicts if the current implementation checks out

[mydea]

I looked over it again, apart from some rebase stuff that is sadly going to have to happen 😬 (e.g. the client type is now gone and just part of core/client now, @sentry/types is gone and types should just be imported from @sentry/core now, ...), overall I want to stress that this is a really cool PR!

This: https://github.com/getsentry/sentry-javascript/pull/13783/files#r1913443495 is the main thing left to do IMHO - if you need more help/pointers please let us know!

[mydea]

Looking great! Only things left IMHO:

• move getBodyString, FetchHint & XhrHint to browser-utils
• rebase and resolve conflicts

[Zen-cronic]

i'm not sure what's making the webkit tests flaky for the added integration tests; locally they all pass on consecutive runs via yarn test --project='webkit' graphQLClient

[mydea]

I can't push changes on your branch, so I opened a PR here: https://github.com/Zen-cronic/sentry-javascript/pull/1 which should fix the remaining CI issues on your branch!

[Zen-cronic]

all resolved now!