refactor: move more common code to base class

Also removes unused imports and organize the ModModel header

launcher/ui/pages/modplatform/modrinth/ModrinthModel.cpp

@@ -1,49 +1,7 @@
 #include "ModrinthModel.h"
-#include "ModrinthPage.h"
-#include "minecraft/MinecraftInstance.h"
-
-#include <Json.h>
 
 namespace Modrinth {
 
-ListModel::ListModel(ModrinthPage* parent) : ModPlatform::ListModel(parent) {}
-
-ListModel::~ListModel() {}
-
-void Modrinth::ListModel::searchRequestFinished(QJsonDocument& doc)
-{
-    jobPtr.reset();
-    
-    QList<ModPlatform::IndexedPack> newList;
-    auto packs = doc.object().value("hits").toArray();
-    for (auto packRaw : packs) {
-        auto packObj = packRaw.toObject();
-
-        ModPlatform::IndexedPack pack;
-        try {
-            Modrinth::loadIndexedPack(pack, packObj);
-            newList.append(pack);
-        } catch (const JSONValidationError& e) {
-            qWarning() << "Error while loading mod from Modrinth: " << e.cause();
-            continue;
-        }
-    }
-    if (packs.size() < 25) {
-        searchState = Finished;
-    } else {
-        nextSearchOffset += 25;
-        searchState = CanPossiblyFetchMore;
-    }
-    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
-    modpacks.append(newList);
-    endInsertRows();
-}
-
-const char* sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
-
-const char** Modrinth::ListModel::getSorts() const
-{
-    return sorts;
-}
+const char* ListModel::sorts[5] { "relevance", "downloads", "follows", "updated", "newest" };
 
 }  // namespace Modrinth