Fix vote popup (#14940)

Content.Client/UserInterface/Systems/Vote/VoteUIController.cs

@@ -0,0 +1,37 @@
+using Content.Client.UserInterface.Screens;
+using Content.Client.UserInterface.Systems.Gameplay;
+using Content.Client.Voting;
+using Robust.Client.UserInterface.Controllers;
+
+namespace Content.Client.UserInterface.Systems.Vote;
+
+public sealed class VoteUIController : UIController
+{
+    [Dependency] private readonly IVoteManager _votes = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        var gameplayStateLoad = UIManager.GetUIController<GameplayStateLoadController>();
+        gameplayStateLoad.OnScreenLoad += OnScreenLoad;
+        gameplayStateLoad.OnScreenUnload += OnScreenUnload;
+    }
+
+    private void OnScreenLoad()
+    {
+        switch (UIManager.ActiveScreen)
+        {
+            case DefaultGameScreen game:
+                _votes.SetPopupContainer(game.VoteMenu);
+                break;
+            case SeparatedChatGameScreen separated:
+                _votes.SetPopupContainer(separated.VoteMenu);
+                break;
+        }
+    }
+
+    private void OnScreenUnload()
+    {
+        _votes.ClearPopupContainer();
+    }
+}