fix(ctk_toplevel): removed excess icon setting

[RobbieKhan]

Default icon is always automatically set in __init__ method of Toplevel TWICE after 200 msec after creation. It is called correctly in the end of __init__ method when you call self._windows_set_titlebar_icon() 200 msec after creating the Toplevel window and it doesn't change icon if user already set his own one. But for the first time you call it one more time without any checks in the beginning of the __init__ method. Please delete that excess call in the next update.

[UnlimitedBytes]

Can we please land this @TomSchimansky

[octimot]

This is indeed much needed!

[OCNeve]

This is still an issue for me, as of version 5.2.2

[RobbieKhan]

This is still an issue for me, as of version 5.2.2

Unfortunately author of this library just ignores bug reports, he just have to press one damn button to fix this issue, but this pull request is already 1 year old

[OCNeve]

What a pity ! If only he could make the project opensource or something. I love his work and use it a lot for minor importance backend tools but still, that are in production. It would be sad for the project to die.