edit predictions: Preview jumps by animating cursor to target (#24604)

https://github.com/user-attachments/assets/977d08fb-a2b1-4826-9d95-8f35c6cb9f13




Release Notes:

- N/A

---------

Co-authored-by: Danilo <danilo@zed.dev>
Co-authored-by: Smit <smit@zed.dev>
Co-authored-by: Max <max@zed.dev>

assets/icons/zed_predict_down.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M15 9.33333L14.5 9.66667L12.5 11L10.5 9.66667L10 9.33333" stroke="black" stroke-width="1.5"/>
+<path d="M12.5 11V4.5" stroke="black" stroke-width="1.5"/>
+<path d="M7.5 8.9V11C5.43097 11 4.56903 11 2.5 11V10.4L7.5 5.6V5H2.5V7.1" stroke="black" stroke-width="1.5"/>
+</svg>

assets/icons/zed_predict_up.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10 6.66667L10.5 6.33333L12.5 5L14.5 6.33333L15 6.66667" stroke="black" stroke-width="1.5"/>
+<path d="M12.5 11V5" stroke="black" stroke-width="1.5"/>
+<path d="M7.5 8.9V11C5.43097 11 4.56903 11 2.5 11V10.4L7.5 5.6V5H2.5V7.1" stroke="black" stroke-width="1.5"/>
+</svg>