lots of icons in the temporary files directory

I'm not sure if this is a bug, but rather just a strange behavior. For reasons completely unrelated to DeltaChat, I opened the directory of temporary files of the current user (`%temp%`) and saw a lot of ico files created by DeltaChat (see the screenshot below). I assume that they are created during the launch of DeltaChat. Perhaps it makes sense to delete these temporary files when DeltaChat is shutting down, or maybe it would be more efficient (I do not know) to use the resources of the executable file to work with icons `¯\_(ツ)_/¯` - Operating System: Windows 11 - Delta Chat Version: v2.53.0 <img width="1231" height="537" alt="Image" src="https://github.com/user-attachments/assets/04119099-8f46-4237-9cc1-4085876601ec" />