Replace MaterialDesign Laf

See whether replacing MaterialDesignLaf with FlatLaf is viable.

Whilst MDLaf can look pretty nice, it can be bothersome at times with how it behaves.

If FlatLaf is easier to customize and implement, switch

https://github.com/JFormDesigner/FlatLaf

https://www.formdev.com/flatlaf/

It even has a Theme Editor!!!!! Yooooooooo what the https://www.formdev.com/flatlaf/theme-editor/