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/modrinth/ModrinthModel.cpp

@@ -1,7 +1,6 @@
 #include "ModrinthModel.h"
 #include "ModrinthPage.h"
 #include "minecraft/MinecraftInstance.h"
-#include "minecraft/PackProfile.h"
 
 #include <Json.h>
 
@@ -11,37 +10,6 @@ ListModel::ListModel(ModrinthPage* parent) : ModPlatform::ListModel(parent) {}
 
 ListModel::~ListModel() {}
 
-const char* sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
-
-void ListModel::performPaginatedSearch()
-{
-    QString mcVersion = ((MinecraftInstance*)((ModrinthPage*)parent())->m_instance)->getPackProfile()->getComponentVersion("net.minecraft");
-    bool hasFabric = !((MinecraftInstance*)((ModrinthPage*)parent())->m_instance)
-                          ->getPackProfile()
-                          ->getComponentVersion("net.fabricmc.fabric-loader")
-                          .isEmpty();
-    auto netJob = new NetJob("Modrinth::Search", APPLICATION->network());
-    auto searchUrl = QString(
-        "https://api.modrinth.com/v2/search?"
-        "offset=%1&"
-        "limit=25&"
-        "query=%2&"
-        "index=%3&"
-        "facets=[[\"categories:%4\"],[\"versions:%5\"],[\"project_type:mod\"]]")
-            .arg(nextSearchOffset)
-            .arg(currentSearchTerm)
-            .arg(sorts[currentSort])
-            .arg(hasFabric ? "fabric" : "forge")
-            .arg(mcVersion);
-
-    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
-    jobPtr = netJob;
-    jobPtr->start();
-
-    QObject::connect(netJob, &NetJob::succeeded, this, &Modrinth::ListModel::searchRequestFinished);
-    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
-}
-
 void Modrinth::ListModel::searchRequestFinished()
 {
     jobPtr.reset();
@@ -80,4 +48,11 @@ void Modrinth::ListModel::searchRequestFinished()
     endInsertRows();
 }
 
+const char* sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
+
+const char** Modrinth::ListModel::getSorts() const
+{
+    return sorts;
+}
+
 }  // namespace Modrinth