*Steps to reproduce:*
#  Create a new Unity Project
#  Install the Multiplayer Play Mode package from the Package Manager
#  Navigate to Window > Multiplayer > Play Mode Scenarios
#  Use the middle resizer bar to resize the scenario section horizontally
#  Observe the layout behaviour

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*Actual results:* The panel can be resized to the edge, effectively collapsing it and making it hard to interact with or resize again

*Expected results:* The panel should have a minimum horizontal size, preventing it from being resized beyond a usable limit

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*Reproducible with versions:* 1.5.0-exp.2 (6000.0.47f1, 6000.1.0f1, 6000.2.0a9)

*Not reproducible with versions:* 2022.3.61f1 (No "Multiplayer Center" window is unavailable)

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*Tested on (OS):* macOS 15.5 (Silicon M4)

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*Notes:*
* The absence of a minimum size makes it difficult to return the panel to its original state, affecting usability