All-In-One: Installer, Patcher, Launcher (IPL)

Launcher All-In-One: Installer, Patcher, Launcher (IPL) 3.1

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Update to .NET 4.8
Simplify client UI button initialization and handling
Simplify StreamBuffer coalesce size detection
Fix server DownloadHost stop/start functionality
Move remaining local app settings to global settings file for easier access