…llections

- Prevents potential IndexOutOfRangeException in `FormattedObjectGraph` by using `Math.Min` for string insertion.
- Improves formatting consistency of test expectations by removing unnecessary whitespace.
- Adds a test to ensure rendering of empty nested collections does not crash.

This fixes the following compile error:
```
FSC : error FS3880: Language version '6.0' is out of support. The last .NET SDK supporting it is available at https://dotnet.microsoft.com/en-us/download/dotnet/10.0
```

C# 14' "first-class spans" causes `MemoryExtensions.Contains` to be picked over `Enumerable.Contains`.
`ConstantSubExpressionReductionVisitor.Visit` calls `DynamicInvoke` which then throws a `NotSupportedException` from [`RuntimeMethodInfo.ThrowNoInvokeException`](https://source.dot.net/#System.Private.CoreLib/src/libraries/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs,70)

For more information see dotnet/runtime#120251

)