[FEATURE] Disable window buttons in minimalist mode

[Alfie51m]

Is your feature request related to a problem? Please describe.
Window constantly getting closed / changing notifcation type accidently when using chat

Describe the solution you'd like
Disable the window buttons whilst in minimalist mode to prevent accidental presses, great mod btw!

[DarkKronicle]

This should be an easy fix. Thanks for the suggestion! When the next release comes up I'll implement it.