[BUG] Missing window bar and broken fullscreen

[lucaszischka]

Hello, I used WeekToDo v2.2.0 on an arm64/aarch64 (Apple Silicon) MacBook.

When I opened WeekToDo it doesn't shows a window bar (with "close", "minimise/fullscreen" and "minimise" options).
It also opens with 100% height and width of the screen, but on the desktop, not as a separate window (like other Mac apps); by that I mean that macOS does not seem to know that the app is in fullscreen (and just in full width and height) and even shows the Dock above the app.

If you have any questions regarding my issue, please let me know! Thank you! :)