File dialog position

## Version of Dear PyGui

Version: 2.1.0
Operating System: Windows

## My Issue/Question

While `file_dialog` does not support `pos`, it looks like support for it exists in the code as `set_item_pos` seems to work (to some extent).

See the following Discord post for discussion on this topic: [How do you set the file dialog position in window?](https://discord.com/channels/736279277242417272/1118084011374419989).

## To Reproduce

Steps to reproduce the behavior:
1. Create a file dialog with `pos`. It fails due to an unknown argument.
2. Create a file dialog without `pos` and then use `set_item_pos`. It works.

## Expected behavior

Either both `pos` and `set_item_pos` set the position of the file dialog or both of them don't.

## Screenshots/Video

None.

## Standalone, minimal, complete and verifiable example

```python
# Here's some code anyone can copy and paste to reproduce your issue
import dearpygui.dearpygui as dpg

dpg.create_context()
dpg.create_viewport()
dpg.setup_dearpygui()

# This will absolutely crash, even if the procedure runs properly and sets the position
dpg.add_file_dialog(...)
dpg.set_item_pos(dpg.last_item(), (10, 20))

# to make it work...
try:
dpg.set_item_pos(dpg.last_item(), (10, 20))
except:
pass # or whatever you want here

dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()
```