Errors in GraXpert 3.0.2 GUI log

[ajeb78]

I'm seeing errors like the following in the output log on kubuntu 24.04:

2024-07-01 11:03:46,028 MainProcess root ERROR    Exception in Tkinter callback
2024-07-01 11:03:46,029 MainProcess root ERROR    Traceback (most recent call last):
2024-07-01 11:03:46,029 MainProcess root ERROR      File "/opt/hostedtoolcache/Python/3.10.14/x64/lib/python3.10/tkinter/__init__.py", line 1921, in __call__
2024-07-01 11:03:46,029 MainProcess root ERROR      File "/home/runner/work/GraXpert/GraXpert/graxpert/ui/widgets.py", line 52, in on_mouse_wheel
2024-07-01 11:03:46,029 MainProcess root ERROR      File "/opt/hostedtoolcache/Python/3.10.14/x64/lib/python3.10/site-packages/customtkinter/windows/widgets/ctk_scrollable_frame.py", line 280, in check_if_master_is_canvas
2024-07-01 11:03:46,029 MainProcess root ERROR    AttributeError: 'str' object has no attribute 'master'