Fix: Use KeyBinding instead of hardcoded K key in command window

[tember8003]

Fix: user key binding in command window

When the user changes the toggle GUI key binding from K to another key (e.g., apostrophe), the command window would still close when pressing K. The new key binding would only work to open the window, but K would always close it.

SteveOverlayScreen.java was checking for hardcoded keyCode == 75 (K key) instead of using the configured key binding.

-> Replaced hardcoded keyCode == 75 check with KeyBindings.TOGGLE_GUI.matches(keyCode, scanCode)

Tested

• Tested with default K key binding : Work
• Tested with custom key binding (apostrophe): Work
• Confirmed K key can now be typed in command window without closing it when rebound

Fixes the issue where key binding configuration was inconsistent between opening and closing the GUI.

[Maxencehabar]

Perfect fix for being able to type K in chat