Fix: C# Console selection highlight missing

[xi-lu]

Problem
In commit 5710d71, the setter of DefaultInputFieldAlpha was changed to write to a private field that requires an instance created during Init. However, DefaultInputFieldAlpha is assigned before Init is called, causing the assignment to silently fail and the value to be lost.

UnityExplorer/src/UI/UIManager.cs

Lines 89 to 102 in 6d2ca5c

	UIPanels.Add(Panels.CSConsole, new CSConsolePanel(UiBase));
	UIPanels.Add(Panels.HookManager, new HookManagerPanel(UiBase));
	UIPanels.Add(Panels.Freecam, new FreeCamPanel(UiBase));
	UIPanels.Add(Panels.Clipboard, new ClipboardPanel(UiBase));
	UIPanels.Add(Panels.ConsoleLog, new LogPanel(UiBase));
	UIPanels.Add(Panels.Options, new OptionsPanel(UiBase));
	UIPanels.Add(Panels.UIInspectorResults, new MouseInspectorResultsPanel(UiBase));
	MouseInspector.inspectorUIBase = UniversalUI.RegisterUI(MouseInspector.UIBaseGUID, null);
	new MouseInspector(MouseInspector.inspectorUIBase);
	// Call some initialize methods
	Notification.Init(UIRoot);
	ConsoleController.Init();

Impact
The selection highlight in the C# Console disappears because the input field alpha value defaults to 0 instead of the expected value.

[yukieiji]

LGTM