Landing page layout issue on low DPI displays

[bilenkonito]

Describe the bug

The landing page for the MacOS version of the editor doesn't adjust its size properly when opened on a low DPI display or at a lower than 1080p resolution (non-retina-scaling).
Since the window is not resizeable, part of the contents stay outside the visible boundaries.

To Reproduce

Steps to reproduce the behavior:

1. Open 'Jellycuts' for MacOS
2. Click on 'Customization'
3. Scroll down to 'Theming' section

Expected behavior

Either the contents should be smaller or the window bigger.
Alternatively the window should be resizeable.

Screenshots

Notice the horizontal scroll stops before the end of the content on the right.

Information

• Device: MacBookPro9,2 / MacBook Pro (13-inch, Mid 2012)
• OS: MacOS Monterey 12.5 (21G72)
• Jellycuts Version: 1.0 (9)
• Jailbroken? MacOS installed clean via OpenCore Legacy due to unsupported upgrade path

Additional context

I've noticed this issue quite often in apps made for recent versions of MacOS (since Big Sur, to be precise) when they are opened on low DPI displays. It's worth noting that the issue is dependent on the display the app was open on, not on the display it is currently being displayed on. If you open the app in an external display at >=1080p resolution (2560x1440p in retina-scaling mode if I'm not mistaken) and then move the window to a low DPI display such as the 720p non-retina-scaling one on the MacBookPro9,2 (or any pre-1080p external display for that matter), the issue is not present at all and the window simply ends up being bigger than usual on the low DPI display.