fix: replace a non-native expression

Author: TomSssM

2-ui/3-event-details/3-mousemove-mouseover-mouseout-mouseenter-mouseleave/article.md

@@ -50,7 +50,7 @@ If the mouse moves very fast from `#FROM` to `#TO` elements as painted above, th
 
 In practice that's helpful, because if there may be many intermediate elements. We don't really want to process in and out of each one.
 
-From the other side, we should keep in mind that we can't assume that the mouse slowly moves from one event to another. No, it can "jump".
+On the other hand, we should keep in mind that we can't assume that the mouse slowly moves from one event to another. No, it can "jump".
 
 In particular it's possible that the cursor jumps right inside the middle of the page from out of the window. And `relatedTarget=null`, because it came from "nowhere":