Hide debug coordinates from non-admins (#17804)

* Hide debug coordinates for non-admins

* Added server cvar

Content.Client/DebugMon/DebugMonitorSystem.cs

@@ -0,0 +1,25 @@
+using Content.Client.Administration.Managers;
+using Content.Shared.CCVar;
+using Robust.Client.UserInterface;
+using Robust.Shared.Configuration;
+
+
+namespace Content.Client.DebugMon;
+
+/// <summary>
+/// This handles preventing certain debug monitors from appearing.
+/// </summary>
+public sealed class DebugMonitorSystem : EntitySystem
+{
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+    [Dependency] private readonly IClientAdminManager _admin = default!;
+    [Dependency] private readonly IUserInterfaceManager _userInterface = default!;
+
+    public override void FrameUpdate(float frameTime)
+    {
+        if (!_admin.IsActive() && _cfg.GetCVar(CCVars.DebugCoordinatesAdminOnly))
+            _userInterface.DebugMonitors.SetMonitor(DebugMonitor.Coords, false);
+        else
+            _userInterface.DebugMonitors.SetMonitor(DebugMonitor.Coords, true);
+    }
+}