configure_profile_manager: Use a custom dialog for deletion

A hopefully more informative dialog that most importantly notifies the
user that their saves will be deleted with the user profile.

cpm: Only keep track of UI elements that we need

cpm: Remove unused forward declarations

cpm: Add missing include

src/yuzu/configuration/configure_profile_manager.h

@@ -3,16 +3,22 @@
 
 #pragma once
 
+#include <functional>
 #include <memory>
 
+#include <QDialog>
 #include <QList>
 #include <QWidget>
 
+#include "common/uuid.h"
+
 namespace Core {
 class System;
 }
 
 class QGraphicsScene;
+class QDialogButtonBox;
+class QLabel;
 class QStandardItem;
 class QStandardItemModel;
 class QTreeView;
@@ -26,6 +32,20 @@ namespace Ui {
 class ConfigureProfileManager;
 }
 
+class ConfigureProfileManagerDeleteDialog : public QDialog {
+public:
+    explicit ConfigureProfileManagerDeleteDialog(QWidget* parent);
+    ~ConfigureProfileManagerDeleteDialog();
+
+    void SetInfo(const QString username, const Common::UUID uuid,
+                 std::function<void()> accept_callback);
+
+private:
+    QDialogButtonBox* dialog_button_box;
+    QGraphicsScene* icon_scene;
+    QLabel* label_info;
+};
+
 class ConfigureProfileManager : public QWidget {
     Q_OBJECT
 
@@ -47,7 +67,8 @@ private:
     void SelectUser(const QModelIndex& index);
     void AddUser();
     void RenameUser();
-    void DeleteUser();
+    void ConfirmDeleteUser();
+    void DeleteUser(const Common::UUID uuid);
     void SetUserImage();
 
     QVBoxLayout* layout;
@@ -55,6 +76,8 @@ private:
     QStandardItemModel* item_model;
     QGraphicsScene* scene;
 
+    std::unique_ptr<ConfigureProfileManagerDeleteDialog> confirm_dialog;
+
     std::vector<QList<QStandardItem*>> list_items;
 
     std::unique_ptr<Ui::ConfigureProfileManager> ui;