Smooth Caret Animation

[Pers1x]

Add an optional smooth caret animation setting similar to VS Code’s editor.cursorSmoothCaretAnimation.

Currently, the caret instantly jumps to its new position whenever it moves. Instead, when enabled, the caret would smoothly interpolate between its previous and new visual positions over a very short duration (e.g. ~80 ms).

This would only animate the caret itself, not the text or editor contents and should preserve the existing behavior when disabled.

While this doesn’t add new functionality, it significantly improves the perceived polish of the editor.

Possible approach:

• Add an editor setting
• Default it to false (or whatever best fits Zed’s philosophy).
• Animate only the caret’s visual position using a short ease-out interpolation (~70–90 ms).
• Interrupt and retarget the animation smoothly if the caret moves again before the previous animation completes.
• Keep the implementation isolated so there is no behavioral or performance impact when the feature is disabled.