fix: removing mods with their metadata as well

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/ui/pages/instance/ModFolderPage.h

@@ -59,6 +59,8 @@ class ModFolderPage : public ExternalResourcesPage {
     bool onSelectionChanged(const QModelIndex& current, const QModelIndex& previous) override;
 
    private slots:
+    void removeItem() override;
+
     void installMods();
     void updateMods();