*Steps to reproduce:*
#  Create a new Unity Project
#  Install the Multiplayer Play Mode package from the Package Manager
#  Navigate to Window > Multiplayer > Play Mode Status
#  Observe the contents of the window
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*Actual results:* The Play Mode Status window is completely blank

*Expected results:* The window should display placeholder information, such as a message like "No play mode session active."

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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:*
* A completely blank UI can be confusing to users. A simple empty state message or helpful action hint would improve usability