feat: add texture pack parsing

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

launcher/ui/pages/instance/TexturePackPage.h

@@ -39,6 +39,7 @@
 #include "ui_ExternalResourcesPage.h"
 
 #include "minecraft/mod/TexturePackFolderModel.h"
+#include "minecraft/mod/TexturePack.h"
 
 class TexturePackPage : public ExternalResourcesPage
 {
@@ -60,4 +61,15 @@ public:
     {
         return m_instance->traits().contains("texturepacks");
     }
+
+   public slots:
+    bool onSelectionChanged(const QModelIndex& current, const QModelIndex& previous) override
+    {
+        auto sourceCurrent = m_filterModel->mapToSource(current);
+        int row = sourceCurrent.row();
+        auto& rp = static_cast<TexturePack&>(m_model->at(row));
+        ui->frame->updateWithTexturePack(rp);
+
+        return true;
+    }
 };