Android

Improvements and fixes

• Unified text and voice entry points on the home and new-task screens, with smoother message submission and composer transitions.
• Improved the model picker with queue status, activity labels, and selection styling.
• Fixed missing pages in some historical conversations, missing user messages, and stopped-response states affecting later replies.
• Improved plan approval rendering and isolated input between successive questions.
• Fixed a crash that could occur when dragging text-selection handles.
• Fixed overlapping branding elements during landscape cold starts in the CN edition.