Station command improvements (#17431)

* Fix renamestation command not working

* Console completions for station commands

Content.Server/Commands/ContentCompletionHelper.cs

@@ -0,0 +1,22 @@
+using Content.Server.Station.Components;
+using Robust.Shared.Console;
+
+namespace Content.Server.Commands;
+
+/// <summary>
+/// Helper functions for programming console command completions.
+/// </summary>
+public static class ContentCompletionHelper
+{
+    /// <summary>
+    /// Return all stations, with their ID as value and name as hint.
+    /// </summary>
+    public static IEnumerable<CompletionOption> StationIds(IEntityManager entityManager)
+    {
+        var query = entityManager.EntityQueryEnumerator<StationDataComponent, MetaDataComponent>();
+        while (query.MoveNext(out var uid, out _, out var metaData))
+        {
+            yield return new CompletionOption(uid.ToString(), metaData.EntityName);
+        }
+    }
+}