Bugfix for save function not appending .json extension by default

Bugfix for New Story function not clearing World Info from previous story
Torch will not be initialized unless you select a local model, as there's no reason to invoke it for InferKit/Colab
Changed JSON file writes to use indentation for readability

fileops.py

@@ -10,7 +10,8 @@ def getsavepath(dir, title, types):
     path = tk.filedialog.asksaveasfile(
         initialdir=dir, 
         title=title, 
-        filetypes = types
+        filetypes = types,
+        defaultextension="*.*"
         )
     root.destroy()
     if(path != "" and path != None):