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https://github.com/kovidgoyal/kitty
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126aaddccb
Fix the problem caused by wrong cursor coordinates. No more messing with the main cursor, instead the cursor is saved when receiving a pre-edit text update and used for drawing later. Update the overlay to the last visible cursor position before rendering to ensure it always moves with the cursor. Finally, draw the overlay after line rendering is complete, and restore the line buffer after updating the rendered data to ensure that the line text being read is correct at all times. This also improves performance by only rendering once when changes are made, eliminating the need to repeatedly disable and draw after various commands and not even comprehensively.