Improve debug symbol docs

[bruno-garcia]

We have great instructions on how to compile Godot from source, and upload symbols to Sentry done through:

• feat: Godot debug symbols guide sentry-docs#12843

It's live on: https://docs.sentry.io/platforms/godot/configuration/stack-traces/

Some thoughts on how we can improve:

1. The final screenshot indicates something is off:

That red icon, when hovering says:

I do see funtion names, line number and file paths though so I'm not sure why the UI is showing an error. But we should investigate as it could be the way the debug files were generated (e.g: No Call Frame Information (CFI))) or a bug in Sentry, for example.

2. Linking to /platform/native.
   Ideally we don't navigate away from the selected platform. So if the concern is that docs will go out of sync because of all the copy paste. We should create an include. All content goes to a single file, and we include everywhere. That native symbol stuff is used in several docs, like Android, Unreal, .NET etc.