Disables weapon and spells cycling in GUI mode (bugs #2409, #2483, #2645)

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -1955,11 +1955,13 @@ namespace MWGui
 
     void WindowManager::cycleSpell(bool next)
     {
+        if (!isGuiMode())
             mSpellWindow->cycle(next);
     }
 
     void WindowManager::cycleWeapon(bool next)
     {
+        if (!isGuiMode())
             mInventoryWindow->cycle(next);
     }