In the "Plan mode" text input cursor focus forced to the right

[AshirbadGudu]

Screen.Recording.2026-03-07.at.11.09.04.PM.mov

Steps to Reproduce

1. Open the application and switch to Plan mode
2. When it asks any question
3. Type text into the main input field (e.g., "All the records saved to firebase...").
4. Attempt to move the cursor to the beginning or middle of the sentence using the Left Arrow key or by clicking with the mouse.

Expected Result

The cursor should stay where it is placed, allowing for inline editing of the text.

Actual Result

The cursor immediately jumps back to the far right of the text, making it impossible to edit previous words without deleting everything.

Environment Details

• Mode: Plan mode (High priority / Full access enabled)
• OS: MacBook Air M4
• Input Method: Keyboard (Arrow keys) and Mouse

[nmggithub]

My PR #867 should fix this, among other things.