code editor tab on file delete

src/SharpIDE.Application/Features/FileWatching/FileChangedService.cs

@@ -53,6 +53,7 @@ public class FileChangedService(RoslynAnalysis roslynAnalysis, IdeOpenTabsFileMa
 
 	public async Task SharpIdeFileRemoved(SharpIdeFile file)
 	{
+		await file.FileDeleted.InvokeParallelAsync();
 		if (file.IsRoslynWorkspaceFile)
 		{
 			await HandleWorkspaceFileRemoved(file);

src/SharpIDE.Application/Features/SolutionDiscovery/SharpIdeFile.cs

@@ -21,6 +21,7 @@ public class SharpIdeFile : ISharpIdeNode, IChildSharpIdeNode, IFileOrFolder
 	public required bool SuppressDiskChangeEvents { get; set; } // probably has concurrency issues
 	public required DateTimeOffset? LastIdeWriteTime { get; set; }
 	public EventWrapper<SharpIdeFileLinePosition?, Task> FileContentsChangedExternally { get; } = new((_) => Task.CompletedTask);
+	public EventWrapper<Task> FileDeleted { get; } = new(() => Task.CompletedTask);
 
 	[SetsRequiredMembers]
 	internal SharpIdeFile(string fullPath, string name, IExpandableSharpIdeNode parent, ConcurrentBag<SharpIdeFile> allFiles)