Minus Mode doesn't consider used space

[PlusInsta]

Describe the bug
When a user goes below the minimum Discord window size, a feature in /src/tweaks/compact.css colloquially called Minus Mode triggers, collapsing the Server List and Channel List to the side. This occurs even when the Member List, Search, Thread, etc. are not in view taking up space, therefore wasting the user's available space by collapsing when there is no need.

To Reproduce
Steps to reproduce the behavior:

1. Reduce Discord window below minimum size by removing the constraints.
2. Go to any server or DM.
3. Close Member List.
4. There is now an awkward amount of space available for no reason.

Expected behavior
The Minus Mode should only collapse if there is no more room to display vanilla Discord elements. This includes but is not limited to:

• Controls (buttons, etc.)
• Content (text, images, channel descriptions)

Screenshots
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Additional context
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