refactor: move url creation for mods to modplatform/

Moves all things related to creating the URLs of the mod platforms
that go to network tasks to a single place, so that:

1. Maintaining and fixing eventual issues is more straightforward.
2. Makes it possible to factor out more common code between the
   different modplatform pages

launcher/ui/pages/modplatform/flame/FlameModModel.cpp

@@ -1,6 +1,5 @@
 #include "FlameModModel.h"
 #include "FlameModPage.h"
-#include "minecraft/MinecraftInstance.h"
 #include "minecraft/PackProfile.h"
 
 #include <Json.h>
@@ -11,41 +10,6 @@ ListModel::ListModel(FlameModPage* parent) : ModPlatform::ListModel(parent) {}
 
 ListModel::~ListModel() {}
 
-const char* sorts[6]{ "Featured", "Popularity", "LastUpdated", "Name", "Author", "TotalDownloads" };
-
-void ListModel::performPaginatedSearch()
-{
-    QString mcVersion = ((MinecraftInstance*)((FlameModPage*)parent())->m_instance)->getPackProfile()->getComponentVersion("net.minecraft");
-    bool hasFabric = !((MinecraftInstance*)((FlameModPage*)parent())->m_instance)
-                          ->getPackProfile()
-                          ->getComponentVersion("net.fabricmc.fabric-loader")
-                          .isEmpty();
-    auto netJob = new NetJob("Flame::Search", APPLICATION->network());
-    auto searchUrl = QString(
-        "https://addons-ecs.forgesvc.net/api/v2/addon/search?"
-        "gameId=432&"
-        "categoryId=0&"
-        "sectionId=6&"
-
-        "index=%1&"
-        "pageSize=25&"
-        "searchFilter=%2&"
-        "sort=%3&"
-        "modLoaderType=%4&"
-        "gameVersion=%5")
-            .arg(nextSearchOffset)
-            .arg(currentSearchTerm)
-            .arg(sorts[currentSort])
-            .arg(hasFabric ? 4 : 1)  // Enum: https://docs.curseforge.com/?http#tocS_ModLoaderType
-            .arg(mcVersion);
-
-    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
-    jobPtr = netJob;
-    jobPtr->start();
-
-    QObject::connect(netJob, &NetJob::succeeded, this, &FlameMod::ListModel::searchRequestFinished);
-    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
-}
 
 void FlameMod::ListModel::searchRequestFinished()
 {
@@ -87,4 +51,11 @@ void FlameMod::ListModel::searchRequestFinished()
     endInsertRows();
 }
 
+const char* sorts[6]{ "Featured", "Popularity", "LastUpdated", "Name", "Author", "TotalDownloads" };
+
+const char** FlameMod::ListModel::getSorts() const
+{
+    return sorts;
+}
+
 }  // namespace FlameMod

launcher/ui/pages/modplatform/flame/FlameModModel.h

@@ -30,8 +30,10 @@ class ListModel : public ModPlatform::ListModel {
     virtual ~ListModel();
 
    private slots:
-    void performPaginatedSearch() override;
     void searchRequestFinished() override;
+
+   private:
+    const char** getSorts() const override;
 };
 
 }  // namespace Modrinth

launcher/ui/pages/modplatform/flame/FlameModPage.h

@@ -2,6 +2,8 @@
 
 #include "ui/pages/modplatform/ModPage.h"
 
+#include "modplatform/flame/FlameAPI.h"
+
 class FlameModPage : public ModPage {
     Q_OBJECT
 
@@ -18,7 +20,11 @@ class FlameModPage : public ModPage {
     inline QString metaEntryBase() const override { return "FlameMods"; };
 
     bool shouldDisplay() const override;
+    const ModAPI* apiProvider() const override { return &api; };
 
    private:
     void onModVersionSucceed(ModPage*, QByteArray*, QString) override;
+
+   private:
+    FlameAPI api;
 };