Add troubleshooting for flutter screenshot integration background cra…

…sh (#8421)

* Add troubleshooting for flutter screenshot integration background crash

* Add newline

* fix typo

* Linter fix

* Update src/platforms/flutter/troubleshooting.mdx

* Update src/platforms/flutter/troubleshooting.mdx

---------

Co-authored-by: Shana Matthews <shana.l.matthews@gmail.com>

src/platforms/flutter/troubleshooting.mdx

@@ -49,3 +49,11 @@ Dart's `--obfuscate` option is required to be paired with `--split-debug-info` t
 The `--split-debug-info` option requires setting an output directory. The directory must be an inner folder of the project's folder. See [Flutter docs](https://docs.flutter.dev/deployment/obfuscate#obfuscate-your-app) for more information.
 
 Flutter's `build web` command requires setting the `--source-maps` parameter to generate source maps. See [Flutter GitHub Issue](https://github.com/flutter/flutter/issues/72150#issuecomment-755541599) for more information.
+
+## Screenshot Integration Background Crash
+
+There is an [issue with the Sentry Flutter SDK](https://github.com/getsentry/sentry-dart/issues/1669) where apps can crash if taking screenshots in the background.
+
+This is an [issue](https://github.com/flutter/flutter/issues/135245) with Flutter itself and should be fixed in [Flutter 3.15](https://github.com/flutter/flutter/labels/found%20in%20release%3A%203.15).
+
+For prior versions, you can work around this by configuring the SDK only to take screenshots when the app is in the `resumed` state. To do this, set `SentryFlutterOptions.attachScreenshotOnlyWhenResumed` to `true`.