Refactor updating mechanisms to work with all resources

Summary:
- It compiles
- I need to go to bed

Signed-off-by: TheKodeToad <TheKodeToad@proton.me>

launcher/ui/dialogs/ResourceUpdateDialog.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "BaseInstance.h"
+#include "ResourceDownloadTask.h"
+#include "ReviewMessageBox.h"
+
+#include "minecraft/mod/ModFolderModel.h"
+
+#include "modplatform/CheckUpdateTask.h"
+
+class Mod;
+class ModrinthCheckUpdate;
+class FlameCheckUpdate;
+class ConcurrentTask;
+
+class ResourceUpdateDialog final : public ReviewMessageBox {
+    Q_OBJECT
+   public:
+    explicit ResourceUpdateDialog(QWidget* parent,
+                                  BaseInstance* instance,
+                                  std::shared_ptr<ResourceFolderModel> resource_model,
+                                  QList<Resource*>& search_for,
+                                  bool includeDeps);
+
+    void checkCandidates();
+
+    void appendResource(const CheckUpdateTask::Update& info, QStringList requiredBy = {});
+
+    const QList<ResourceDownloadTask::Ptr> getTasks();
+    auto indexDir() const -> QDir { return m_resource_model->indexDir(); }
+
+    auto noUpdates() const -> bool { return m_no_updates; };
+    auto aborted() const -> bool { return m_aborted; };
+
+   private:
+    auto ensureMetadata() -> bool;
+
+   private slots:
+    void onMetadataEnsured(Resource* resource);
+    void onMetadataFailed(Resource* resource,
+                          bool try_others = false,
+                          ModPlatform::ResourceProvider first_choice = ModPlatform::ResourceProvider::MODRINTH);
+
+   private:
+    QWidget* m_parent;
+
+    shared_qobject_ptr<ModrinthCheckUpdate> m_modrinth_check_task;
+    shared_qobject_ptr<FlameCheckUpdate> m_flame_check_task;
+
+    const std::shared_ptr<ResourceFolderModel> m_resource_model;
+
+    QList<Resource*>& m_candidates;
+    QList<Resource*> m_modrinth_to_update;
+    QList<Resource*> m_flame_to_update;
+
+    ConcurrentTask::Ptr m_second_try_metadata;
+    QList<std::tuple<Resource*, QString>> m_failed_metadata;
+    QList<std::tuple<Resource*, QString, QUrl>> m_failed_check_update;
+
+    QHash<QString, ResourceDownloadTask::Ptr> m_tasks;
+    BaseInstance* m_instance;
+
+    bool m_no_updates = false;
+    bool m_aborted = false;
+    bool m_include_deps = false;
+};