[BUG] Autocomplete always adds the first using

[RobertOstermann]

Describe the Issue

When using the autocomplete feature selecting an option adds a using statement to the top of the file. If there are multiple options with the same name, it is adding the using statement for the top option.

Steps To Reproduce

Attempt to autocomplete something with multiple options of the same name. In my example I attempted to add the JsonIgnore annotation and even though I selected the second option (Newtonsoft.Json) the using System.Text.Json.Serialization statement was added.

Expected Behavior

The correct using statement should be added.

Environment Information

• VSCode Version: 1.81.0-insider
• C# Dev Kit Version: v0.3.18
• Windows 10 using WSL