NOISSUE Curseforge makeover

update UI to match other modpack platforms
add sorting
add version selection, fixes GH-3667
add installing beta versions, fixes GH-3611

api/logic/modplatform/flame/FlamePackIndex.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <QList>
+#include <QMetaType>
+#include <QString>
+#include <QVector>
+
+#include "multimc_logic_export.h"
+
+namespace Flame {
+
+struct ModpackAuthor {
+    QString name;
+    QString url;
+};
+
+struct IndexedVersion {
+    int addonId;
+    int fileId;
+    QString version;
+    QString mcVersion;
+    QString downloadUrl;
+};
+
+struct IndexedPack
+{
+    int addonId;
+    QString name;
+    QString description;
+    QList<ModpackAuthor> authors;
+    QString logoName;
+    QString logoUrl;
+    QString websiteUrl;
+
+    bool versionsLoaded = false;
+    QVector<IndexedVersion> versions;
+};
+
+MULTIMC_LOGIC_EXPORT void loadIndexedPack(IndexedPack & m, QJsonObject & obj);
+MULTIMC_LOGIC_EXPORT void loadIndexedPackVersions(IndexedPack & m, QJsonArray & arr);
+}
+
+Q_DECLARE_METATYPE(Flame::IndexedPack)