[Feature Request] Add option to hide permission mode indicator line in custom status line mode

Bug Description
Title: Option to hide permission mode indicator when using custom status line

Description:

When using bypassPermissions mode, there's a line below the status bar that shows:
⏵⏵ bypass permissions on (shift+tab to cycle)

I'd like to display the permission mode in my custom status line script instead, but there's no way to hide this built-in indicator line.

Request:
Add a setting like "hidePermissionModeIndicator": true in settings.json to hide this line when users want to show the permission status in their custom status line instead.

Why:

• Reduces UI clutter when permission info is already in the custom status line
• Gives users more control over their terminal layout
• The information would still be visible, just in a user-preferred location

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.3
• Feedback ID: 7f9f33d7-7a67-4ae3-80d6-c22cf1f23823

Errors

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