Allow for respawn and erase verb to be used on offline players. Also minor rewrite on respawn command and new erase command (#30433)

* Localize respawn command, allow for it to use userids, and make it use [Dependency] attributes

* Make respawn verb available for offline players

* Make erase available for offline players

A thousand admins rejoice

* Reorder verbs in code

* Add erase command

* Fix localisation for erase command

* Address reviews and add completion to respawn command

* Complete reviews which I forgor

Content.Server/Administration/Commands/EraseCommand.cs

@@ -0,0 +1,47 @@
+using System.Linq;
+using Content.Server.Administration.Systems;
+using Content.Shared.Administration;
+using Robust.Server.Player;
+using Robust.Shared.Console;
+
+namespace Content.Server.Administration.Commands;
+
+[AdminCommand(AdminFlags.Admin)]
+public sealed class EraseCommand : LocalizedEntityCommands
+{
+    [Dependency] private readonly IPlayerLocator _locator = default!;
+    [Dependency] private readonly IPlayerManager _players = default!;
+    [Dependency] private readonly AdminSystem _admin = default!;
+
+    public override string Command => "erase";
+
+    public override async void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        if (args.Length != 1)
+        {
+            shell.WriteError(Loc.GetString("cmd-erase-invalid-args"));
+            shell.WriteLine(Help);
+            return;
+        }
+
+        var located = await _locator.LookupIdByNameOrIdAsync(args[0]);
+
+        if (located == null)
+        {
+            shell.WriteError(Loc.GetString("cmd-erase-player-not-found"));
+            return;
+        }
+
+        _admin.Erase(located.UserId);
+    }
+
+    public override CompletionResult GetCompletion(IConsoleShell shell, string[] args)
+    {
+        if (args.Length != 1)
+            return CompletionResult.Empty;
+
+        var options = _players.Sessions.OrderBy(c => c.Name).Select(c => c.Name).ToArray();
+
+        return CompletionResult.FromHintOptions(options, Loc.GetString("cmd-erase-player-completion"));
+    }
+}