feat: Column on left, hideable

- columns are hideable (saves to settings)
- image column moved to left
- datamodals can provide resize modes

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/ui/widgets/ModListView.h

@@ -14,6 +14,7 @@
  */
 
 #pragma once
+#include <QHeaderView>
 #include <QTreeView>
 
 class ModListView: public QTreeView
@@ -22,4 +23,5 @@ class ModListView: public QTreeView
 public:
     explicit ModListView ( QWidget* parent = 0 );
     virtual void setModel ( QAbstractItemModel* model );
+    virtual void setResizeModes (const QList<QHeaderView::ResizeMode>& modes);
 };