Normalize spacing in List<T>.Contains Cube example snippet

[Copilot]

The List<T>.Contains docs page’s second C# example (Cube) had inconsistent spacing versus adjacent examples, causing a visible formatting mismatch. This PR aligns that snippet’s formatting with the surrounding style.

• Scope

  • Updated one file: snippets/csharp/System.Collections.Generic/ListT/Contains/program.cs.

• Change

  • Removed a single extra blank line between public class Cube : IEquatable<Cube> and its constructor.

• Result

  • The rendered example now matches the spacing pattern used across nearby examples.

public class Cube : IEquatable<Cube>
{
    public Cube(int h, int l, int w)
    {
        this.Height = h;
        this.Length = l;
        this.Width = w;
    }
}

[Copilot]

Pull request overview

This PR makes a small formatting-only adjustment to the C# snippet used on the List<T>.Contains documentation page, ensuring the Cube example’s spacing matches adjacent examples in the docs.

Changes:

• Removed a single extra blank line between public class Cube : IEquatable<Cube> and its constructor in the snippet.

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-collections