Bottom sheet shifts entirely up when keyboard opens, hiding content

Current Behavior:

When the keyboard opens in the Add Task bottom sheet, the entire sheet shifts upward to accommodate the keyboard. This causes the following issues:

- The bottom sheet pushes too far up, potentially hiding important UI elements
- Users cannot see the full form while typing
- Poor user experience when filling out multiple fields

Expected Behavior:

- The bottom sheet should move up only slightly when the keyboard opens
- The sheet should maintain a maximum height that leaves some space from the top of the screen
- Users should be able to scroll through the form fields comfortably while the keyboard is visible
- The header (Cancel/Title/Save buttons) should remain visible and accessible at all times