refactor: adapt rest of the codebase to the new resource model

In order to access the ModFolderModel from the ModFolderPage, i created
a new m_model for the correct type, shadowing the m_model of type
ResourceFolderModel. This creates two shared_ptr references to the same object,
but since they will have the same lifetime, it doesn't generate a memory
leak.

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

launcher/minecraft/mod/Resource.h

@@ -34,6 +34,8 @@ class Resource : public QObject {
 
     Resource(QObject* parent = nullptr);
     Resource(QFileInfo file_info);
+    Resource(QString file_path) : Resource(QFileInfo(file_path)) {}
+
     ~Resource() override = default;
 
     void setFile(QFileInfo file_info);