Prevent queue navigation from triggering PiP

[wizdom13]

• Suppress native PiP auto-entry when the minimized player opens the in-app play queue
• Detect the Play Queue activity as an internal task transition before handling the leave hint
• Disable auto-enter only for that internal transition and let MainActivity restore normal PiP parameters on return
• Keep Home/swipe-to-Home PiP and the dedicated PiP button unchanged
• Preserve playback state while opening and managing the queue
• Add regression coverage for internal queue detection and temporary auto-enter suppression
• Fixes Toggling queue from minimized player incorrectly triggers Picture-in-Picture (PiP) #366