docs(javascript): Add docs for GraphQL Client

docs/platforms/javascript/common/configuration/integrations/graphqlclient.mdx

@@ -0,0 +1,64 @@
+---
+title: GraphQL Client
+description: "Enhance spans and breadcrumbs with data from GraphQL requests."
+notSupported:
+  - javascript.cordova
+  - javascript.node
+  - javascript.aws-lambda
+  - javascript.azure-functions
+  - javascript.connect
+  - javascript.express
+  - javascript.fastify
+  - javascript.gcp-functions
+  - javascript.hapi
+  - javascript.hono
+  - javascript.koa
+  - javascript.nestjs
+  - javascript.deno
+  - javascript.cloudflare
+  - javascript.bun
+---
+
+<Alert>
+
+  This integration only works inside a browser environment.
+
+</Alert>
+
+_Import name: `Sentry.graphqlClientIntegration`_
+
+This integration enhances the data captured from GraphQL requests in your application.
+It extracts GraphQL-specific information from HTTP requests matching your configured endpoints and enriches
+both spans and breadcrumbs with GraphQL operation details.
+
+When enabled, this integration will:
+- Update span names with the GraphQL operation type and name
+- Add GraphQL query documents to spans
+- Add GraphQL operation information to breadcrumbs
+
+## Options
+
+### `endpoints`
+
+_Type: `(string|RegExp)[]`_
+
+An array of URLs or URL patterns that should be treated as GraphQL endpoints.
+The integration will only process requests to these endpoints. This array can contain strings, regular expressions, or a combination of both.
+
+Example:
+```javascript
+Sentry.init({
+  integrations: [
+    Sentry.graphqlClientIntegration({
+      endpoints: [
+        'https://graphql-api.example.com',
+        /\/graphql$/
+      ]
+    })
+  ]
+});
+```
+
+To **match all** endpoints with the `graphqlClientIntegration`, you would set the endpoints option to `[/.*/]` in your configuration.
+This regex pattern will match any URL.
+