Lobby refactor + species loadouts support (#27576)

* Vox stuff

* Species loadouts and lobby refactor

The control flow for lobby is all over the shop so I pulled it all up from the individual controls so now they handle the bare minimum required and LobbyUIController handles the rest.

* a

* Bulk changes

* a

* weh

* Character import / export

* finalise

* woops this stuff too

* Also datafield exporting

* comments

* Review

Content.Client/Lobby/UI/CharacterPickerButton.xaml.cs

@@ -0,0 +1,92 @@
+using System.Linq;
+using Content.Client.Humanoid;
+using Content.Shared.Clothing;
+using Content.Shared.Humanoid;
+using Content.Shared.Humanoid.Prototypes;
+using Content.Shared.Preferences;
+using Content.Shared.Preferences.Loadouts;
+using Content.Shared.Roles;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client.Lobby.UI;
+
+/// <summary>
+/// Holds character data on the side of the setup GUI.
+/// </summary>
+[GenerateTypedNameReferences]
+public sealed partial class CharacterPickerButton : ContainerButton
+{
+    private IEntityManager _entManager;
+
+    private EntityUid _previewDummy;
+
+    /// <summary>
+    /// Invoked if we should delete the attached character
+    /// </summary>
+    public event Action? OnDeletePressed;
+
+    public CharacterPickerButton(
+        IEntityManager entityManager,
+        IPrototypeManager prototypeManager,
+        ButtonGroup group,
+        ICharacterProfile profile,
+        bool isSelected)
+    {
+        RobustXamlLoader.Load(this);
+        _entManager = entityManager;
+        AddStyleClass(StyleClassButton);
+        ToggleMode = true;
+        Group = group;
+        var description = profile.Name;
+
+        if (profile is not HumanoidCharacterProfile humanoid)
+        {
+            _previewDummy = entityManager.SpawnEntity(prototypeManager.Index<SpeciesPrototype>(SharedHumanoidAppearanceSystem.DefaultSpecies).DollPrototype, MapCoordinates.Nullspace);
+        }
+        else
+        {
+            _previewDummy = UserInterfaceManager.GetUIController<LobbyUIController>()
+                .LoadProfileEntity(humanoid, null, true);
+
+            var highPriorityJob = humanoid.JobPriorities.SingleOrDefault(p => p.Value == JobPriority.High).Key;
+            if (highPriorityJob != null)
+            {
+                var jobName = prototypeManager.Index<JobPrototype>(highPriorityJob).LocalizedName;
+                description = $"{description}\n{jobName}";
+            }
+        }
+
+        Pressed = isSelected;
+        DeleteButton.Visible = !isSelected;
+
+        View.SetEntity(_previewDummy);
+        DescriptionLabel.Text = description;
+
+        ConfirmDeleteButton.OnPressed += _ =>
+        {
+            Parent?.RemoveChild(this);
+            Parent?.RemoveChild(ConfirmDeleteButton);
+            OnDeletePressed?.Invoke();
+        };
+
+        DeleteButton.OnPressed += _ =>
+        {
+            DeleteButton.Visible = false;
+            ConfirmDeleteButton.Visible = true;
+        };
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        base.Dispose(disposing);
+        if (!disposing)
+            return;
+
+        _entManager.DeleteEntity(_previewDummy);
+        _previewDummy = default;
+    }
+}